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Academic literature on the topic 'Équations différentielles fonctionnelles neutres'
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Journal articles on the topic "Équations différentielles fonctionnelles neutres"
Appell, Jürgen, and Espedito de Pascale. "Theoremes de Bornage Pour L'Operateur de Nemyckii Dans Les Espaces Ideaux." Canadian Journal of Mathematics 38, no. 6 (December 1, 1986): 1338–55. http://dx.doi.org/10.4153/cjm-1986-068-3.
Full textDissertations / Theses on the topic "Équations différentielles fonctionnelles neutres"
Sidki, Omar. "Une approche par la théorie des semigroupes non linéaires de la résolution d'une classe d'équations différentielles fonctionnelles de type neutre : application à une équation de dynamique de population." Pau, 1994. http://www.theses.fr/1994PAUU3024.
Full textBenarab, Amina. "Contribution to the partial pole placement problem for some classes of time-delay systems with applications." Electronic Thesis or Diss., université Paris-Saclay, 2022. http://www.theses.fr/2022UPAST136.
Full textOne of the questions of ongoing interest for linear time-delay systems is to determine conditions on the equation's parameters that guarantee the exponential stability of solutions. In general, it is quite a challenge to establish conditions on the parameters of the system in order to guarantee such a stability. One of the effective approaches in the stability analysis of time-delay systems is the frequency domain approach. In the Laplace domain, the stability analysis amounts to study the distribution of characteristic quasipolynomial functions' roots. Once the stability of a delay system has been proven, it is important to characterize the exponential decay rate of the solutions of such systems. In the frequency domain, this decay rate corresponds to the dominant spectral value. Recent works emphasized the link between maximal multiplicity and dominant roots. Indeed, conditions for a given multiple root to be dominant are investigated, this property is known as Multiplicity-Induced-Dominancy (MID). In this dissertation, three topics related to the MID property are investigated. Firstly, the effect of multiple roots with admissible multiplicities exhibiting, under appropriate conditions, the validity of the MID property for second-order neutral time-delay differential equations with a single delay is explored. The stabilization of the classical oscillator benefits from the obtained results. Secondly, the effects of time-delays on the stability of Unmanned Aerial Vehicles (UAVs) is exploited. In this regard, a symbolic/numeric application of the MID property in the control of UAV rotorcrafts featuring time-delays is provided. Lastly, the stabilization of a rolling balance board by means of the MID property is considered
Binda, Olivier. "Suite auto-décrite de Golomb et équations fonctionnelles associées." Nancy 1, 2004. http://docnum.univ-lorraine.fr/public/SCD_T_2004_0167_BINDA.pdf.
Full textIn this thesis, we study the asymptotic bahavior of Golomb's sequence u={1,2,2,3,3,4,4,4,5,5,5,6,6,6,6,. . . }, which is the only non-decreasing sequence of integers with u(1)=1 and where u(n) is the number of occurences of n in the sequence u={u(1),u(2),. . . }. We prove that each solution of the differential equation f'(x)=1/f(f(x)) admits an asymptotic development and we obtain relations between it's coefficients. We compare Golomb'sequence to one of these solutions and we prove that Golomb's sequence admits such an asymptotic development too
Béraud, Jean-François. "Étude topologique des cartes, équations fonctionnelles et énumérations." Université de Marne-la-Vallée, 1998. http://www.theses.fr/1998MARN0038.
Full textLakrib, Mustapha. "Stroboscopie et moyennisation dans les équations différentielles fonctionnelles à retard." Phd thesis, Université de Haute Alsace - Mulhouse, 2004. http://tel.archives-ouvertes.fr/tel-00444149.
Full textHargé, Gilles. "Régulatité de certaines fonctionnelles sur l'espace de Wiener." Evry-Val d'Essonne, 1993. http://www.theses.fr/1993EVRY0001.
Full textSamassi, Lassana. "Calcul des variations des fonctionnelles à arguments déviés." Paris 9, 2004. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=2004PA090027.
Full textThis thesis deals with problems of calculus of variation for functionals with deviating arguments arising for instance in optimal control problems and variational problems with deviating arguments. In the first chapter, we establish existence results for monodimensional problems. We show that the direct method of calculus of variation is suitable for problems with deviating arguments in a functional space as Sobolev space with a weight. The case of vector functions and several deviating functions is studied. The second chapter deals with a general idea to state necessary optimality conditions for problems of variational calculus or optimal control problems with deviating arguments, some regularity results are established. In the third chapter, we establish existence results for free and fix discontinuities problems with deviating arguments. The last chapter is devoted to the resolution of a nonlinear elliptic equation with deviating arguments. We prove existence and uniqueness results by using the Schauder fixed point theorem
Cherif, Abdoul Aziz. "Contribution à la recherche de solutions périodiques d'équations différentielles fonctionnelles et de systèmes ordinaires forcés." Pau, 1990. http://www.theses.fr/1990PAUU3010.
Full textCamar-Eddine, Mohamed. "Fermeture des fonctionnelles de diffusion et de l'élasticité linéaire pour la topologie de la Mosco-convergence." Toulon, 2002. http://tel.archives-ouvertes.fr/tel-00006576.
Full textThe purpose of this thesis is to characterize all possible Mosco-limits of sequences of diffusion functionals or isotropic elasticity ones. It is a well-known fact that, when the diffusion coefficients in the scalar case, or the elasticity coefficients in the vectorial one, are not uniformly bounded, non local terms and killing terms can appear in the limit functional, despite the strong local nature of any element of those sequences. In the vectorial case, the limit functional can even involve some second derivative of the displacement. From a mechanical point of view, the effective properties of a composite material can differ fundamentally from those of its components. Umberto Mosco has shown that any limit of a sequence of diffusion functionals has to be a Dirichlet form. The contribution of the first part of this work provides a positive answer to the inverse problem. We show that any Dirichlet form is the Mosco-limit of some sequence of diffusion functionals. In a crucial step, we exhibit an explicit composite diffusive material, the effective properties of which contain an elementary non-local interaction. Then, using a step by step approach, we reach at each step a more general non-local interaction until obtaining all the Dirichlet forms. The second part of this work deals with the vectorial case. We show that the Mosco-closure of the set of isotropic elasticity functionals coincides with the set of all non-negative lower semi-continuous quadratic functionals which are objective. The proof of this result, which is far from being a simple generalisation of the scalar case, is based, at the start, on a result which is comparable to the scalar case. Then a fundamentally different approach is necessary
Mandallena, Jean-Philippe. "Contributions à une approche générale de la régularisation variationnelle de fonctionnelles intégrales." Montpellier 2, 1999. http://www.theses.fr/1999MON20083.
Full textBooks on the topic "Équations différentielles fonctionnelles neutres"
R, Grace Said, and O'Regan Donal, eds. Oscillation theory for second order dynamic equations. London: Taylor & Francis, 2003.
Find full text1966-, Bohner Martin, and Li Wan-Tong, eds. Nonoscillation and oscillation: Theory for functional differential equations. New York: Marcel Dekker, 2004.
Find full textR, Nosov V., ed. Stability of functional differential equations. London: Academic, 1986.
Find full text1957-, Simonov P. M., ed. Stability of differential equations with aftereffect. New York: Taylor & Francis, 2003.
Find full textStamova, Ivanka, and Gani Stamov. Functional and Impulsive Differential Equations of Fractional Order: Qualitative Analysis and Applications. Taylor & Francis Group, 2017.
Find full textStamova, Ivanka, and Gani T. Stamov. Functional and Impulsive Differential Equations of Fractional Order. Taylor & Francis Group, 2021.
Find full textStamova, Ivanka, and Gani Stamov. Functional and Impulsive Differential Equations of Fractional Order: Qualitative Analysis and Applications. Taylor & Francis Group, 2017.
Find full textFunctional and Impulsive Differential Equations of Fractional Order: Qualitative Analysis and Applications. Taylor & Francis Group, 2016.
Find full textOscillation Nonoscillation Stability and Asymptotic Properties for Second and Higher Order Functional Differential Equations. Taylor & Francis Group, 2020.
Find full textDomoshnitsky, Alexander, Leonid Berezansky, and Roman Koplatadze. Oscillation, Nonoscillation, Stability and Asymptotic Properties for Second and Higher Order Functional Differential Equations. Taylor & Francis Group, 2020.
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