Tesis sobre el tema "Théories de domaines"
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Megrez, Nasreddine. "Étude de certains problèmes elliptiques et sous elliptiques nonlinéaires sur des domaines non bornés". Toulouse 1, 2003. http://www.theses.fr/2003TOU10064.
Texto completoThis thesis is devoted to the study of some nonlinear elliptic and subelliptic problems on unbounded domains. Using variational methods, we investigate the existence of weak solutions for an elliptic problem involving the p-Laplacian operator defined on an unbounded domain of Rn. After this, and using also varational methods, we prove the existence of weak solutions for a subelliptic system involving the Heisenberg Laplacian on unbounded domains of the Heisenberg group Hn. Finally, using Rabinowitz's bifurcation theory, we prove the existence of bounded continuums of positive solutions for a semilinear elliptic problem defined on Rn with an indefinite nonlinearity
Langlet, Irène. "Les théories de l'essai littéraire dans la seconde moitié du XXème siècle : domaines francophone, germanophone et anglophone : synthèses et enjeux". Rennes 2, 1995. https://acces.bibliotheque-diderot.fr/login?url=https://doi.org/10.15122/isbn.978-2-406-05668-3.
Texto completoA synthesis of the theoretical and critical studies of the literary essay brings to light three types of stakes. As regards the theory of literary genres, the essay demands particular strategies for being legitimated as a literary genre ; it implies a overhaul of the general theory of literature and of the concept of literariness. At philosophical level, it gives rise to a critical deepening of the principles of occidental epistemology, of the notion of conscious subject, and of the concept of culture. Lastly, from a socio-critical point of view, it needs the setting of new theoritical tools for being apprehended azs a literary event, being the concern of both writer and publisher in the global context of production and legitimation institutioins of nonfictionnal texts. The concepts of conditional literariness and of attentional object of the aesthetic experience give a theoretical frame which allows to integrate the equisitions of recent rhetoric research, of reception theory, of research on the paratext of literary works and of pragmatic analysis of dicourse. This frame offers possibility for having the previously stakes brought to light converged for a study of the literary essay
Riviere, Peter. "Génération automatique d’obligations de preuves paramétrée par des théories de domaine dans Event-B : Le cadre de travail EB4EB". Electronic Thesis or Diss., Université de Toulouse (2023-....), 2024. http://www.theses.fr/2024TLSEP052.
Texto completoNowadays, we are surrounded by complex critical systems such as microprocessors, railways, home appliances, robots, aeroplanes, and so on. These systems are extremely complex and are safety-critical, and they must be verified and validated. The use of state-based formal methods has proven to be effective in designing complex systems. Event-B has played a key role in the development of such systems. Event-B is a formal system design method that is state-based and correct-by-construction, with a focus on proof and refinement. Event-B facilitates verification of properties such as invariant preservation, convergence, and refinement by generating and discharging proof obligations.Additional properties for system verification, such as deadlock-freeness, reachability, and liveness, must be explicitly defined and verified by the designer or formalised using another formal method. Such an approach reduces re-usability and may introduce errors, particularly in complex systems.To tackle these challenges, we introduced the reflexive EB4EB framework in Event-B. In this framework, each Event-B concept is formalised as a first-class object using First Order Logic (FOL) and set theory. This framework allows for the manipulation and analysis of Event-B models, with extensions for additional, non-intrusive analyses such as temporal properties, weak invariants, deadlock freeness, and so on. This is accomplished through Event-B Theories, which extend the Event-B language with the theory's defined elements, and also by formalising and articulating new proof obligations that are not present in traditional Event-B. Furthermore, Event-B's operational semantics (based on traces) have been formalised, along with a framework for guaranteeing the soundness of the defined theorems, including operators and proof obligations. Finally, the proposed framework and its extensions have been validated across multiple case studies, including Lamport's clock case study, read/write processes, the Peterson algorithm, Automated Teller Machine (ATM), autonomous vehicles, and so on
Fulcrand, Julien. "Les changements en chaîne historiques confrontés à la phonologie moderne : Propulsion et traction modélisées par deux approches de préservation". Thesis, Lille 3, 2017. http://www.theses.fr/2017LIL30023/document.
Texto completoThe aim of this thesis is to formalise historical chain shifts within modern phonological theories. Martinet (1952, 1955, 1970) distinguishes two main categories of chain shifts: push chains and pull chains. Push chains will be dealt with in the first main part of this thesis (chapters 2 and 3). For modelling of push chains, an existing model is used: Łubowicz's (2003, 2012) Contrast Preservation Theory. For modelling pull chains, which will be the focus of the second part of this thesis (chapters 4 and 5), a new theory will be proposed, based on the phonetic work by De Boer (2001). This proposition is based on the notion of the pillar domains (domaines piliers). Chapter 1 starts with the observation that neither the derivational, SPE-like, theories or output driven theories like Prince's & Smolensky's Optimality Theory (OT) are able to formalise chain shifts properly. Within the derivational theories, it is possible to get a correct description of a chain shift. However, in order to do that, we have to break the links between the different stages of the chain shift. Therefore, one loses the systemic interdependence of the different stages, which is the essence of the chain shift. As regards to Optimality Theory, it is the two-level structure of the theory which proves problematic for chain shifts. In a theoretical chain shift such as /a/ → [e] > /e/ → [i], it is impossible for OT to make, in the same analysis, [e] an optimal candidate and /e/ a non-optimal one. In chapter 2, we analyse and compare several output-driven propositions that have been made to account for chain shifts. Many of them are not satisfactory because they do not manage to model the systemic motivation of chain shifts. The only theory that seems able to complete this objective is Łubowicz's Contrast Preservation Theory (CPT). This theory is based on the notions of contrast, contrast preservation and it evaluates scenarios rather than individual candidates. Contrast preservation is achieved through contrast transformation. The term contrast transformation indicates that the contrast levels of the input system are preserved but that their nature is different in the output system. One observation about CPT is that Łubowicz designed it for synchronic chain shifts. In chapter 2, we prove that CPT is able to model the perceptible coherence in diachronic chain shifts. In chapter 3, thus we decide to test the validity of CPT on actual historical chain shifts. It is tested on two cases. One is the well-known vocalic chain shift the Great Vowel Shift in English. The other one is the Second German Sound Shift (or High German Consonant Shift). We demonstrate that CPT is able to account for both of these chain shifts. At the end of chapter 3, CPT is tested on another type of chain shifts, i.e. chain shifts in first-language acquisition. The studied chain shift is s → θ → f. This chain shift is different from the other two because there is no new contrast level created. The last stage of this chain shift ends with a merger . Once again, CPT can account for this chain shift in a coherent way
Astorg, Matthieu. "Théorie de Teichmüller dynamique infinitésimale et domaines errants". Thesis, Toulouse 3, 2015. http://www.theses.fr/2015TOU30042/document.
Texto completoLet f be a rational map of degree d at last 2. McMullen and Sullivan introduced the dynamical Teichmüller space Teich(f), which is a complex manifold of dimension at most 2d-2. It paramtrizes the quasiconformal conjugacy class of f in the moduli space ratdvia a holomorphic map F from Teich(f) to ratd. We give a new and elementary construction of Teich(f), and we prove that the parametrization F is an immersion, answering a question of McMullen and Sullivan. This last result enables us to give simplified proofs of rigidity results of Makienko and Levin under the assumption of expansion along the critical orbit. In a second part, we construct a family of examples of polynomial endomorphisms of¨P^2(C) with a wandering domain. Our examples are skew-products, of the form (z,w) -> (f(z)+aw, g(w)). Moreover, we will construct examples with real coefficients where the wandering domain intersects R^2
Kaslik, Eva. "Domaines d'attraction et applications dans la théorie du contrôle". Paris 13, 2006. http://www.theses.fr/2006PA132007.
Texto completoCardaliaguet, Pierre. "Domaines discriminants en jeux différentiels". Paris 9, 1994. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1994PA090004.
Texto completoSené, Anaïs. "Théorie des domaines et des textures non uniformes dans les ferroélectriques". Amiens, 2010. https://tel.archives-ouvertes.fr/tel-01344584.
Texto completoThe Landau's sentence "Nobody can cancel the Coulomb's law" is often overlooked in understanding of ferroelectric materials that, paradoxically, should be destabilized by the backward depolarizing electrostatic field produced by the charge of the polarization surface breakdown. As was proposed by Landau (1935) and Kittel (1946) this puzzle can be resolved for ferromagnetics with similar magnetostatic problem by sample segregation onto differently oriented magnetization domains. It was thought however that domain formation mechanism is irrelevant for ferroelectrics where the depolarization field can be screened by free semiconducting charges. Only in 2000's it was recognized and experimentally confirmed that the regular domain patterns do appear in nanoscopic samples <500nm. The objective of the Thesis is to propose the analytical method for modeling of non-uniform polarization texture in nano-scale samples caused by depolarization field. Basing on the generalized Kittel low-temperature approach and on the Ginzburg-Landau formalism valid close to transition temperature we study the principal parameters of the domain structure in uniaxial ferroelectric films and their dependance on temperature, applied field and film thickness. We investigate next the distribution of polarization in cubic multicomponent ferroelectrics having the quasi-Goldstone (rotational) polarization degree of freedom. We show that the requirement of minimization of the depolarization energy leads to formation of unconventional topological vortices or chiral skyrmions. Their formation during the switching process can resolve the long-standing Landauer paradox of small coercive field in ferroelectrics
Alborzi, Seyed Ziaeddin. "Automatic Discovery of Hidden Associations Using Vector Similarity : Application to Biological Annotation Prediction". Thesis, Université de Lorraine, 2018. http://www.theses.fr/2018LORR0035/document.
Texto completoThis thesis presents: 1) the development of a novel approach to find direct associations between pairs of elements linked indirectly through various common features, 2) the use of this approach to directly associate biological functions to protein domains (ECDomainMiner and GODomainMiner), and to discover domain-domain interactions, and finally 3) the extension of this approach to comprehensively annotate protein structures and sequences. ECDomainMiner and GODomainMiner are two applications to discover new associations between EC Numbers and GO terms to protein domains, respectively. They find a total of 20,728 and 20,318 non-redundant EC-Pfam and GO-Pfam associations, respectively, with F-measures of more than 0.95 with respect to a “Gold Standard” test set extracted from InterPro. Compared to around 1500 manually curated associations in InterPro, ECDomainMiner and GODomainMiner infer a 13-fold increase in the number of available EC-Pfam and GO-Pfam associations. These function-domain associations are then used to annotate thousands of protein structures and millions of protein sequences for which their domain composition is known but that currently lack experimental functional annotations. Using inferred function-domain associations and considering taxonomy information, thousands of annotation rules have automatically been generated. Then, these rules have been utilized to annotate millions of protein sequences in the TrEMBL database
Garidou, Benoît. "Recherche sur la théorie de la propriété publique en droit administratif français". Toulouse 1, 2003. http://www.theses.fr/2003TOU10039.
Texto completoProposing today, after so many renowned authorities a research on Public Property in French administrative Law should not cause much surprise. A long time ruled by a strong finalist trend, public property has recently been the subject of theoretical and practical determining analyses. From now on, the prevailing idea according which public property is now a trust property has become a classic conception. Since the late nineties, property has been public because it is the property of public persons. Behind this outward evidence of such an innovation, there probably lies one of the most important progress in domanial contemporary thought. Therefore, studying the property of public persons must be from now on dealt with the almost care. As a matter of fact what matters today is no longer to doubt as the classics used to do when they wondered wether it appropriate to think about the originality of such property but to sharpen its meaning and its methods of study. As in many great innovation, this new theory must be clarified for fear of inviting in a more or less short run to some misguiding. If there can be found today some symmetry with the theory of private property such apparent parallelism must not have any inference on the heart of the subject. The risk for the future is to see public persons borrow the most antique juridical attire of the paterfamilias. If the question what is public property ? seems to be solved, the question of a public property what for ? which is quite as important will have from now on to hold our attention
Alborzi, Seyed Ziaeddin. "Automatic Discovery of Hidden Associations Using Vector Similarity : Application to Biological Annotation Prediction". Electronic Thesis or Diss., Université de Lorraine, 2018. http://www.theses.fr/2018LORR0035.
Texto completoThis thesis presents: 1) the development of a novel approach to find direct associations between pairs of elements linked indirectly through various common features, 2) the use of this approach to directly associate biological functions to protein domains (ECDomainMiner and GODomainMiner), and to discover domain-domain interactions, and finally 3) the extension of this approach to comprehensively annotate protein structures and sequences. ECDomainMiner and GODomainMiner are two applications to discover new associations between EC Numbers and GO terms to protein domains, respectively. They find a total of 20,728 and 20,318 non-redundant EC-Pfam and GO-Pfam associations, respectively, with F-measures of more than 0.95 with respect to a “Gold Standard” test set extracted from InterPro. Compared to around 1500 manually curated associations in InterPro, ECDomainMiner and GODomainMiner infer a 13-fold increase in the number of available EC-Pfam and GO-Pfam associations. These function-domain associations are then used to annotate thousands of protein structures and millions of protein sequences for which their domain composition is known but that currently lack experimental functional annotations. Using inferred function-domain associations and considering taxonomy information, thousands of annotation rules have automatically been generated. Then, these rules have been utilized to annotate millions of protein sequences in the TrEMBL database
Kadri, Nasser. "Sur la théorie de la diffusion d'ondes élastiques dans les domaines extérieurs". Lille 1, 1986. http://www.theses.fr/1986LIL10038.
Texto completoSarhane, Hind. "La théorie du risque dans le domaine de la bancassurance". Paris 8, 2006. http://www.theses.fr/2006PA083031.
Texto completoThe phenomenon of the bankinsurance is relatively recent and the subject is vast. Our study concerns essentially the place which occupies the risk in the design and the evolution of this new sector in this particular case in life insurance. During this study, we try to have a global view that is for the legal level, tax, management, behavioral. . . We try to demonstrate how the phenomenon appeared, the favorable reasons which contributed to its birth and its development. However we review the methods of this distribution of the life insurance by banks at the national and global level : first step towards the risk-taking of banks towards the insurances
Delavaquerie, Géraldine. "Pour une théorie de la propriété renouvelée : étude commune des propriétés privée et publique". Caen, 2011. http://www.theses.fr/2011CAEN0096.
Texto completoThe study of public and private properties leads to two observations: first, each of these theories i. E. The way they are displayed and described can be criticized. Second, each of them has some traits in common. According to these elements, a joint study can be suggested in order to build a renewed and common theory of property. An objective study, disconnected from previous theories and based on all legislative texts governing properties, is suggested. The common theory of property shall then be inferred from these texts. The rejection of the theories of each property requires to determine the nature of this right before and in order to determine its content. Property being an individual right, it has been inferred from various suggested classifications that it is an exclusive and immediate relationship between a person and a thing and more specifically an exclusive and immediate relationship between an owner and his possessions. The laws governing this relationship reveal an internal organization allowing the assignment of one set of rules regarding the relationship of property. This assignment depends on the nature of the goods subject of property. It is from this legal regime of goods that the common theory of property has been developed. The use of its nature of subjective right invites to seek which prerogative this subjective right of property confers to the owner. This is the benefit of the legal regime of goods; this benefit being exclusive and immediate
Adjamagbo, Kossivi. "Fondements de la théorie des déterminants sur un domaine de Ore". Paris 6, 1991. http://www.theses.fr/1991PA066002.
Texto completoRazafison, Ulrich Jerry. "Théorie L(p) avec poids pour les équations d'Oseen dans les domaines non bornés". Phd thesis, Mathématiques appliquées, 2004. http://www.theses.fr/2004PAUU3012.
Texto completoThis thesis is devoted to the study of the Oseen equations in unbounded domains. The Oseen model is a linearized version of the Navier-Stokes equations describing the flow of a viscous and incompressible fluid past a bounded body. To describe the behavior at infinity of solutions and to take into account the paraboloidal region, the so-called wake, which appears behind the body during the flow, we choose to set the problem in a functional framework which uses anisotropic weights. In a first step, we prove density results and Hardy inequalities. In a second step, we prove existence, uniqueness and regularity of solutions. The results are first established in the whole space, then in an exterior domain
Blaquière, Benjamin. "La théorie de l’accessoire en droit administratif". Thesis, Paris 2, 2018. http://www.theses.fr/2018PA020084.
Texto completoThe "accessory theory" is a legal rule that tends to suggest that the accessory has to follow the principal. Even though it had been increasingly invoked in administrative law, it has been used in a somewhat impressionistic way. In order to better understand it and facilitate its application, this study aims to figure out when, how and why this theory applies in French administrative law
Laurain, Antoine. "Domaines singulièrement perturbés en optimisation de formes". Nancy 1, 2006. http://docnum.univ-lorraine.fr/public/SCD_T_2006_0178_LAURAIN.pdf.
Texto completoIn shape optimization, the main results concerning the case of domains with smooth boundaries and smooth perturbations of these domains are well-known, whereas the study of non-smooth domains, such as domains with cracks for instance, and the study of singular perturbations such as the creation of a hole in a domain is more recent and complex. This new field of research is motivated by multiple applications, since the smoothness assumptions are not fulfilled in the general case. These singular perturbations can be handled now with new and efficient tools like topological derivative. In the first part, the structure of the shape derivative for domains with cracks is studied. In the case of a smooth domain, with boundary of class C1 or lipschitzian for instance, the derivative depends only on the perturbations of the boundary of the domain in the normal direction. This structure theorem is no longer valid for domains with cracks. We extend here the structure theorem to domains with cracks in any dimension for the first and second derivatives. In dimension two, we get the usual result, i. E. The shape derivative depends also on the tangential components of the deformation at the tips of the crack. In higher dimension, a new term appears in addition to the classical one, coming from the boundary of the manifold representing the crack. In the second part, the singular perturbation of a domain is approximated by using self adjoint extensions of operators. This approximation is first described, then it is applied to a shape optimization problem. An approximated energy functional can be defined for this model problem, and we obtain in particular the usual formula of the topological derivative. In the third part, a numerical application of the topological and shape derivatives is proposed for a non-linear problem. The problem consists in maximizing the energy associated to a Signorini problem in a domain . The evolution of the domain is done with the help of a levelset method to handle easily topological changes
Bamdé, Aurélien. "Essai d'une théorie sur l'architecture normative du réseau Internet". Thesis, Paris 2, 2013. http://www.theses.fr/2013PA020036.
Texto completoComplex is undoubtedly the adjective that best summarises the issue of the normative architecture of the Internet network. This issue is complex for two reasons. The first one results from the identification of the rules that make up this architecture and the second one from their purpose. First of all, the identification of the rules proves to be an extremely complex matter, since this concept of the rule is not so easy to define, as it refers to such a wide range of realities. After establishing the existence of the rules which set the behaviour of network builders, it is necessary to raise the question of the the nature of the rules. Here again, solving this issue is not as easy as it seems. In fact, in literature there is no universal way to distinguish the various types of rules. Secondly, the rules that compose the normative architecture of the internet aim at organising the digital society. Yet, this is a complex system. If one accepts the idea, one has to correlatively claim that the rule-complying scheme that enables such a system to be controlled is very different from that which rules more common rules for us, such as the rules of law. While the former is underpinned by a self organising mechanism, the creation of the latter stems from an act of willing. The difference between both schemes is significant: in the first case spontaneity controls the setting up of rules of conduct, while in the second case reason does. The opposition between these two normative schemes can be found in the digital universe too. It is conveyed by the existing competition between the digital and the legal orders. That is why the normative architecture of the Internet network will be described through the competition between these two normative systems
Ben, Cheikh Ali Mohsen. "Homogénéisation des solutions renormalisées dans des domaines perforés". Rouen, 2001. http://www.theses.fr/2001ROUES050.
Texto completoPeyrache, Jean-Philippe. "Nouvelles approches itératives avec garanties théoriques pour l'adaptation de domaine non supervisée". Thesis, Saint-Etienne, 2014. http://www.theses.fr/2014STET4023/document.
Texto completoDuring the past few years, an increasing interest for Machine Learning has been encountered, in various domains like image recognition or medical data analysis. However, a limitation of the classical PAC framework has recently been highlighted. It led to the emergence of a new research axis: Domain Adaptation (DA), in which learning data are considered as coming from a distribution (the source one) different from the one (the target one) from which are generated test data. The first theoretical works concluded that a good performance on the target domain can be obtained by minimizing in the same time the source error and a divergence term between the two distributions. Three main categories of approaches are derived from this idea : by reweighting, by reprojection and by self-labeling. In this thesis work, we propose two contributions. The first one is a reprojection approach based on boosting theory and designed for numerical data. It offers interesting theoretical guarantees and also seems able to obtain good generalization performances. Our second contribution consists first in a framework filling the gap of the lack of theoretical results for self-labeling methods by introducing necessary conditions ensuring the good behavior of this kind of algorithm. On the other hand, we propose in this framework a new approach, using the theory of (epsilon, gamma, tau)- good similarity functions to go around the limitations due to the use of kernel theory in the specific context of structured data
Carpi-Petit, Servane. "Contribution à une théorie des successions en droit administratif". Paris 2, 2004. http://www.theses.fr/2004PA020092.
Texto completoLegal persons may die, just like physical persons. Public persons are no exception to the rule and may either just die or have to be replaced and their mission taken over. But whatever the circumstances, a public person will always leave an estate to pass on. Fundamental rules governing the process appear to stem directly from civil law and usually involve devolution, transmission and disposal. Beyond that, however, the authority in charge of the succession will have to take into account the specificities of public property and more particularly of public domain. Moreover, the choice of heirs may abide by criteria laid down in civil law, fist because public person have non family, hence non legal heirs, also because testamentary successions have traditionally been prohibited in administrative law. One may thus identify two criteria in order to choose heirs when replacements are required, namely similarity of mission and geographical identity. In cases of straight cancellation, the criterium governing the restoration of assets to those who endowed the public person will be enough to see to the succession. Transmission is more akin to civil law, probably because it is merely a technical implementation of the modes of devolution, which does not require to take account of the specificities of public property. Finally, disposal and distribution will take place according to rules that are specific to administrative law and bear no relationship whatsoever with those applicable in civil law. This juxtaposition of rules has given rise to a consistent and specific law which can aptly be labelled as an administrative law of succession
Stefan, Marius. "Contributions à l'estimation pour petits domaines". Doctoral thesis, Universite Libre de Bruxelles, 2005. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210911.
Texto completoDoctorat en sciences, Orientation statistique
info:eu-repo/semantics/nonPublished
Colard-Fabregoule, Catherine. "Essai d'une théorie générale sur les successions d'états en matière de biens publics". Paris 1, 1999. http://www.theses.fr/1999PA010265.
Texto completoMétivier, Ludovic. "Une méthode d'inversion non linéaire pour l'imagerie sismique haute résolution". Phd thesis, Université Paris-Nord - Paris XIII, 2009. http://tel.archives-ouvertes.fr/tel-00471293.
Texto completoRASOLOARIJAONA, MAMY NIRINA. "Non-linearites de la loi de darcy : etudes theorique, numerique et experimentale". Grenoble 1, 1993. http://www.theses.fr/1993GRE10124.
Texto completoMelessike, Aklisso. "Les stratégies de domaines et les systèmes de rémunérations : (bases théoriques et étude empirique)". Paris 1, 1995. http://www.theses.fr/1995PA010048.
Texto completoThis research develops and tests several hypothesis that link business strategies and compensation systems. The subject of the study is to try to explain the way companies manage their compensations related to the behaviour adopted in their business units or sectors to gain competitive advantages. The theoretical background adopted follows a contingency approach which consists in integrating in the analysis, the effects of internal and external environment (size, law, organization structure,. . . ) An empirical study has been applied to 54 french companies. The main results show that there are some non-intented links between business strategies and compensation systems
Havard, François. "Moyennes ergodiques sur des domaines à symétrie sphérique". Thesis, Tours, 2008. http://www.theses.fr/2008TOUR4005/document.
Texto completoWe study in this thesis the convergence of ergodic means associated to Zd or Rd group actions. In a first part, we consider an Rd measure preserving action and we study ergodic means over annulus of the Euclidean space. The central point is the description of the domain of validity of maximal inequalities. The classical case of balls and the singular case of spheres are well known. In our intermediate situation we obtain a dichotomy theorem : either the means on annulus obey the same law as the means on balls, or they obey the same law as the means on spheres. In the second part, we consider a Zd action and we describe the behavior of ergodic means taken on the integral points of euclidean spheres. We propose a detailed presentation of a theorem due to Magyar
Briend, Jean-Yves. "Exposants de Liapounoff et points périodiques d'endomorphismes holomorphes de CPk". Toulouse 3, 1997. http://www.theses.fr/1997TOU30179.
Texto completoOunaïes, Myriam. "Ensembles inévitables pour les applications holomorphes de C [exposant] n dans C [exposant] n". Toulouse 3, 1995. http://www.theses.fr/1996TOU30140.
Texto completoSaugez, Hélène. "L'affectation des biens à l'utilité publique : Contribution à la théorie générale du domaine public". Phd thesis, Université d'Orléans, 2012. http://tel.archives-ouvertes.fr/tel-00762745.
Texto completoSaugez, Helene. "L'affectation des biens à l'utilité publique : Contribution à la théorie générale du domaine public". Electronic Thesis or Diss., Orléans, 2012. http://www.theses.fr/2012ORLE0001.
Texto completoThe public law of the properties is in full transformation. The movements affect mainly the definition of the publicproperty and that of the public domain. In the heart of these notions is the affectation of the properties in the publicutility. Indeed, this last one is directly bound to the public domain. The first remedy in the crisis was the adoption ofthe legislative reform of 2006 ending in the general Code of the property of the public persons.The affectation is relatively emphasis within this Code. The reform remains, however, superficial. Indeed, a logicdifferent from that of the property should have prevailed to resolve the major stakes in this crisis. Whiledemonstrating the notion of affectation, autonomous with regard to that of the public property, has to remain afundamental element of recognition of the public domain, this last one that must be reduced to the main part. But, itespecially has to lead, once freed from the organic criterion, in a better valuation of the public properties.Today, properties allocated to the public utility belong to private persons. They are not certainly a part any more ofthe public domain but remain nevertheless subdued with care of a protective legal regime, comparable to the rules ofthe public domaniality.At the end, the protection of the affectation envisages except the public property, while reconciling the satisfactionof the general interest with the economic imperatives
Saugez, Helene. "L'affectation des biens à l'utilité publique : Contribution à la théorie générale du domaine public". Thesis, Orléans, 2012. http://www.theses.fr/2012ORLE0001/document.
Texto completoThe public law of the properties is in full transformation. The movements affect mainly the definition of the publicproperty and that of the public domain. In the heart of these notions is the affectation of the properties in the publicutility. Indeed, this last one is directly bound to the public domain. The first remedy in the crisis was the adoption ofthe legislative reform of 2006 ending in the general Code of the property of the public persons.The affectation is relatively emphasis within this Code. The reform remains, however, superficial. Indeed, a logicdifferent from that of the property should have prevailed to resolve the major stakes in this crisis. Whiledemonstrating the notion of affectation, autonomous with regard to that of the public property, has to remain afundamental element of recognition of the public domain, this last one that must be reduced to the main part. But, itespecially has to lead, once freed from the organic criterion, in a better valuation of the public properties.Today, properties allocated to the public utility belong to private persons. They are not certainly a part any more ofthe public domain but remain nevertheless subdued with care of a protective legal regime, comparable to the rules ofthe public domaniality.At the end, the protection of the affectation envisages except the public property, while reconciling the satisfactionof the general interest with the economic imperatives
Planckeel, Frédéric. "Indisponibilités et théorie du droit : contribution à la redéfinition du système juridique". Lille 2, 2004. http://www.theses.fr/2004LIL20009.
Texto completoThe nature of such established institutions as clauses of inalienability or public domain inalienability is still an enigma. This is due to the incompatibility of inalienabilities with the traditionnal foundations of property law. So it is out of the theory of law that a summa divisio can be observed whereas objective inalienability directly relate to the objective property, wich is assigned to its proprietor even towards third parties, subjective inalienability abolish only the power of the proprietor. These two models allow us not only to develop for the first time a general theory of inalienabilities, but also to show the essence of fundamental concepts of subjective property, objective property, legal capacity, personal right and real right. These concepts even prove to be in the heart of a logical and universal system : it transcends the legal system, while making up its technical substance, specified according to the own principles of every State. This setting of legal system to equation invites to reconsider all the technical concepts, and paves the way for a theoretical unification of the diverse national systems
Bensaibi, Mahmoud. "Identification de la fonction de transfert d'une structure ou d'une sous-structure par méthodes fréquentielles et temporelles". Châtenay-Malabry, Ecole centrale de Paris, 1996. http://www.theses.fr/1996ECAP0468.
Texto completoSui, Fusheng. "Etudes théoriques sur l'énergie vibroacoustique transitoire dans le domaine des hautes fréquences". Ecully, Ecole centrale de Lyon, 2004. http://bibli.ec-lyon.fr/exl-doc/fsui.pdf.
Texto completoA new energy approach, called as Transient Simplified Energy Method (MEST), is proposed in this thesis in order to describe the behavior of time-varying vibroacoustic energy at high frequencies. Two kinds of theoretical demonstrations are presented respectively. First, the transient energy equation can be derived directly from generalized wave equation. For hyperbolic waves, the scaled Wigner transform is employed to realized the high frequency limit of vibrational energy. For the dispersive waves, the main idea in derivation of MEST equation is to make use of the characteristics of the wave group in phase space. Secondly, MEST equation can also be derived from local power balance equation where superposition principle is applied in bounded systems. The validations of MEST are carried out by numerical comparative studies which are applied to both discrete subsystems and distributed structures. Comparing with exact energy results, MEST present rather precise prediction
Jaeger, Frédéric de. "Calculabilité sur les réels". Paris 7, 2003. http://www.theses.fr/2003PA077057.
Texto completoPeretti, Philippe de. "Fondements microéconomiques de la monnaie : implications théoriques et empiriques pour quatre domaines de l'économie monétaire". Paris 1, 2002. http://www.theses.fr/2002PA010054.
Texto completoGermain, Pascal. "Généralisations de la théorie PAC-bayésienne pour l'apprentissage inductif, l'apprentissage transductif et l'adaptation de domaine". Doctoral thesis, Université Laval, 2015. http://hdl.handle.net/20.500.11794/26130.
Texto completoEn apprentissage automatique, l’approche PAC-bayésienne permet d’obtenir des garanties statistiques sur le risque de votes de majorité pondérés de plusieurs classificateurs (nommés votants). La théorie PAC-bayésienne «classique», initiée par McAllester (1999), étudie le cadre d’apprentissage inductif, sous l’hypothèse que les exemples d’apprentissage sont générés de manière indépendante et qu’ils sont identiquement distribués (i.i.d.) selon une distribution de probabilité inconnue mais fixe. Les contributions de la thèse se divisent en deux parties. Nous présentons d’abord une analyse des votes de majorité, fondée sur l’étude de la marge comme variable aléatoire. Il en découle une conceptualisation originale de la théorie PACbayésienne. Notre approche, très générale, permet de retrouver plusieurs résultats existants pour le cadre d’apprentissage inductif, ainsi que de les relier entre eux. Nous mettons notamment en lumière l’importance de la notion d’espérance de désaccord entre les votants. Bâtissant sur une compréhension approfondie de la théorie PAC-bayésienne, acquise dans le cadre inductif, nous l’étendons ensuite à deux autres cadres d’apprentissage. D’une part, nous étudions le cadre d’apprentissage transductif, dans lequel les descriptions des exemples à classifier sont connues de l’algorithme d’apprentissage. Dans ce contexte, nous formulons des bornes sur le risque du vote de majorité qui améliorent celles de la littérature. D’autre part, nous étudions le cadre de l’adaptation de domaine, dans lequel la distribution génératrice des exemples étiquetés de l’échantillon d’entraînement diffère de la distribution générative des exemples sur lesquels sera employé le classificateur. Grâce à une analyse théorique – qui se révèle être la première approche PAC-bayésienne de ce cadre d’apprentissage –, nous concevons un algorithme d’apprentissage automatique dédié à l’adaptation de domaine. Nos expérimentations empiriques montrent que notre algorithme est compétitif avec l’état de l’art.
In machine learning, the PAC-Bayesian approach provides statistical guarantees on the risk of a weighted majority vote of many classifiers (named voters). The “classical” PAC-Bayesian theory, initiated by McAllester (1999), studies the inductive learning framework under the assumption that the learning examples are independently generated and are identically distributed (i.i.d.) according to an unknown but fixed probability distribution. The thesis contributions are divided in two major parts. First, we present an analysis of majority votes based on the study of the margin as a random variable. It follows a new conceptualization of the PAC-Bayesian theory. Our very general approach allows us to recover several existing results for the inductive PAC-Bayesian framework, and link them in a whole. Among other things, we highlight the notion of expected disagreement between the voters. Building upon an improved understanding of the PAC-Bayesian theory, gained by studying the inductive framework, we then extend it to two other learning frameworks. On the one hand, we study the transductive framework, where the learning algorithm knows the description of the examples to be classified. In this context, we state risk bounds on majority votes that improve those from the current literature. On the other hand, we study the domain adaptation framework, where the generating distribution of the labelled learning examples differs from the generating distribution of the examples to be classified. Our theoretical analysis is the first PAC-Bayesian approach of this learning framework, and allows us to conceive a new machine learning algorithm for domain adaptation. Our empirical experiments show that our algorithm is competitive with other state-of-the-art algorithms.
Jellouli, Habib. "Sur la densité intrinsèque pour la mesure de Lebesgue et quelques problèmes de dynamique holomorphe". Paris 11, 1994. http://www.theses.fr/1994PA112051.
Texto completoJeeawock-Zedek, Fatma. "Interpolation par des splines quadratiques sur un domaine triangule du plan". Lille 1, 1991. http://www.theses.fr/1991LIL10045.
Texto completoRemogna, Sara. "Local spline quasi- interpolants on bounded domains of R² and R³". Rennes 1, 2010. http://www.theses.fr/2010REN1S003.
Texto completoIn this Thesis, we construct and analyse discrete spline quasi- interpolants (dQIs) on bounded domains of R² and R³. The main problem consists in finding the coefficient functionals associated with generators whose support overlaps the domain, giving an optimal approximation order and involving data points inside or on the boundary of the domain. They are obtained either by minimizing their infinity norm w. R. T. A finite number of free parameters, or by inducing superconvergence of the operator at some specific points. In R² we consider the spaces of C¹ quadratic and C² quartic splines defined on uniform crisscross triangulations, and the space of C² cubic splines defined on uniform Powell-Sabin triangulations of a rectangle. In R³ we consider QIs obtained as blending sums of QIs in 1D and 2D and QIs based on trivariate C² quartic box splines defined on uniform tetrahedral partitions of a parallelepiped. Some numerical examples and applications are provided
Grigorova, Miryana. "QUELQUES LIENS ENTRE LA THÉORIE DE L'INTÉGRATION NON-ADDITIVE ET LES DOMAINES DE LA FINANCE ET DE L'ASSURANCE". Phd thesis, Université Paris-Diderot - Paris VII, 2013. http://tel.archives-ouvertes.fr/tel-00878599.
Texto completoPaolantoni, Victoria. "Propriétés d'extension et estimations de sous-moyenne pour des fonctions de Cauchy-Riemann définies sur une hypersurface de Cn". Aix-Marseille 1, 1996. http://www.theses.fr/1996AIX11026.
Texto completoCeccaldi, Adrien. "Analyse asymptotique de quelques problémes d'EDPs dans des domaines devenant infinis". Thesis, Normandie, 2020. http://www.theses.fr/2020NORMR014.
Texto completoThis thesis has for aim the study of some elliptic problems in some domains becoming unbounded in one or several directions. In the first part of the thesis, we study the problem⌠-div(A ∇uℓ) = f in Ωℓ⌡uℓ = g on ∂Ωℓ.where Ωℓ is the cylinder ω1 x ω2 with ω1and ω2two bounded domains of Rk and Rn-k respectively (with 1 ≤ k ≤ n - 1). We denote by Ω ∞ the infinite cylinder Rk x ω2 and we take f ∈ H-1loc (Ω ∞) and g ∈ H1loc (Ω ∞), so that f ∈ H-1loc (Ω ∞) and g ∈ H1loc (Ω ∞), for any ℓ > 0. This work is based on the methods developed in [23] and [19]. We show that it is possible to indifferently pass to the limit in the sequence of cylinders and then to solve the problem on the infinite cylinder, or to first solve the problem on the cylinder Ωℓ and then to pass to the limit. The limit here is to be understood in the sense of a Saint-Venant type principle, which is to say that the convergence takes place for the restrictions of uℓ to smaller domains Ωℓ (with 0 < ℓ’ < ℓ) contained in Ωℓ. After that, we give some optimality results concerning the domain in which the sequence of solutions uℓ converges to u ∞. In the second chapter, we construct some correctors that enable us to extend the convergence on the whole cylinder. The construction of these correctors is inspired from the ones made in [17] and [18]. In the third chapter of the thesis we prove that, under some decreasing conditions at in_nity for the data f, it is possible to recover the same convergence on the whole cylinder, without the adjunction of correctors. In the last part of the thesis, we study the Stokes problem∫ - µ∆uℓ + ∇pℓ = f dans Ωℓ∫ div u = 0 dans Ωℓ⌡u = 0 sur ∂Ωℓon a domain Ωℓ = Bℓ x ω, where Bℓ ⊂ Rk (1 ≤ k ≤ n-1) is the ball of radius ℓ centered at the origin. Here, an important hypothesis is that f has some radial invariant properties with respect to the first k coordinates. One of the major tools in the proof of the result of this chapter (concerning especially the case k ≥ 2) is a result of the divergence-problem type. More precisely, based on a construction inspired by [9], we prove the following result (here below Dℓ = Ωℓ +1 \ Ωℓ) :If g ∈ W1;p(Dℓ) is a radial function along X1 such that g = 0 on (Bℓ+1 \ Bℓ) x ∂ω and ∫Dℓ gdx = 0. then there exists u ∈ (W1;p 0 (Dℓ))n such that∫div u = g in Dℓ⌡ ||∇u || Lp (Dℓ) ≤ C(|| g || Lp (Dℓ) + ||∇x2g || Lp (Dℓ))the constant C being independent of ℓ for ℓ ≥ 1, (C depends on k, n, p and !). Thanks to this result, used in the case p = 2, we finally prove that in this case, we also have an exponential rate of convergence of uℓ Ωℓ2 to u ∞
Blignières-Légeraud, Anne de. "Pratiques et théorie de la recherches participante dans le domaine de la formation et de l'emploi". Paris 13, 1986. http://www.theses.fr/1986PA131018.
Texto completoThe thesis aims at analysing three sets of research managed by the author. The purpose of the two first sets is to identify and set up new logic of training in collaboration with teams of teachers and or trainers. This logic, derived from a new way of thinking "pedagogy by the objectives", is based on the coherence between goals, general objectives, and "evaluating situations"; it concerns successively students, adults in training and dropped out youngsters. The third set of research aims at defining new approaches of design : on one hand, new contents of qualifications, best suited to the moving needs of the enterprises, on the other hand training for law level youngsters. These three sets of research have a common point : the participation of the "actors" who work within the research. In so far as this participation is the main factor of leading to the issues of the research, it becomes a key to the understanding of the research itself. The thesis analyses the concept of participation according to three complementary ways. The analysis of participation from the research's actors point of view, leads to bring out hypothesis about the conditions such as teams of trainers and teachers become "sujets de recherche" (i. E. One of those who do the research). These conditions seem to us necessary but not sufficient. The analysis of participation from the research's process point of view studies tools aiming at facilitating the access of practicians tho the status of "subjects" participating in the research. The third part was for us an opportunity to test the first two parts on the case of the research about new qualifications which has the three following characteristics : - the number of experimental fields - the number and diversity of the actors which are involved (trained subjects, trai- ners and professionnals working on the job). -it plans not only on elaborating new logics on formation, but at the same time on making research on new functions in the enterprises and, more generally speaking, on finding new ways to utilize human potential
Stephan, Yann. "Calcul numérique de solutions discontinues du problème de Hencky en théorie de la plasticité parfaite". Paris 11, 1987. http://www.theses.fr/1987PA112416.
Texto completoThe strain of a solid body submitted to stresses may be described by the displacements field in each point. If we consider field, which is and,a priori, discontinuities a perfectly plastic material, we search a displacements a solution of a non-linear problem (the Hencky's problem) exhibits a loss of regularity: the existence of such is otherwise confirmed by many experimental results (slip surfaces, angles,). If we suppose that the solutions are smooth on both sides of a curve whose exact location remains to be determined, we are led to an Optimal Design problem which we can solve by convex analysis and numerical methods after a well-suited discretization of the functional spaces (by finite elements) and the slip line (by B-Splines. )
Galia, Antonio. "A Dynamic Homogenization Method for Nuclear Reactor Core Calculations". Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASP042.
Texto completoThree-dimensional deterministic core calculations are typically based on the classical two-step approach, where the homogenized cross sections of an assembly type are pre-calculated and then interpolated to the actual state in the reactor. The weighting flux used for cross-section homogenization is determined assuming the fundamental mode condition and using a critical-leakage modelthat does not account for the actual environment of an assembly. On the other hand, 3D direct transport calculations and the 2D/1D Fusion method, mostly based on the method of characteristics, have recently been applied showing excellent agreement with reference Monte-Carlo code, but still remaining computationally expensive for multiphysics applications and core depletioncalculations.In the present work, we propose a method of Dynamic Homogenization as an alternative technique for 3D core calculations, in the framework of domain decomposition method that can be massively parallelized. It consists of an iterative process between core and assembly calculationsthat preserves assembly exchanges. The main features of this approach are:i) cross-sections homogenization takes into account the environment of each assembly in the core;ii) the reflector can be homogenized with its realistic 2D geometry and its environment;iii) the method avoids expensive 3D transport calculations;iv) no “off-line” calculation and therefore v) no cross-section interpolation is required.The verification tests on 2D and 3D full core problems are presented applying several homogenization and equivalence techniques, comparing against direct 3D transport calculation. For this analysis, we solved the NEA “PWR MOX/UO2 Core Benchmark” problem, which is characterized by strong radial heterogeneities due to the presence of different types of UOx and MOx assemblies at different burnups. The obtained results show the advantages of the proposed method in terms of precision with respect to two-step and performances with respect to the direct approach
Pégourié-Gonnard, Manuel. "Approximation diophantienne sur les variétés abéliennes". Paris 6, 2012. http://www.theses.fr/2012PA066443.
Texto completoThis thesis aims at providing a quantitative version of the following theorem : there are only finitely many approximations with positive exponentof any subvariety of an abelian variety. This theorem was proved by Faltingsin 1991 using mostly the same tools as his proof of the Mordell-Langconjecture. A corollary is the following extension of Siegel's theorem,conjectured by Lang: any abelian variety has only finitely many integralpoints. We proceed with Vojta's method, following Rémond's work on a quantitativeversion of Mordell-Lang: the technical heart of the thesis is the proof of anexplicit version of a suitable variant of Vojta's inequality ; we thenestablish an inequality à la Mumford and an explicit bound for the number of exceptional approximations follows. However, we need an additional hypothesis to get an explicit bound when thevariety considered contains translates of a positive-dimensional abeliansubvariety. Indeed, in some cases, an explicit bound for the number of pointswould give an explicit bound for their height, which seems to be out of reach at the present time
Métivet, Brigitte. "Résolution spectrale des équations de Navier-Stokes par une méthode de sous-domaines courbes". Paris 6, 1987. http://www.theses.fr/1987PA066187.
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