Dissertations / Theses on the topic 'Diffusionism'
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Burley, Alice. "Literary diffusionism in the age of modernism, 1911-1937." Thesis, Queen Mary, University of London, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.610921.
Full textAmprako, Francis. "Culturally Responsive Teaching of Indigenous Students in Canada's Northwest Territories." ScholarWorks, 2017. https://scholarworks.waldenu.edu/dissertations/3585.
Full textLane, Jonathon. "Anchorage in Aboriginal affairs: A. P. Elkin on religious continuity and civic obligation." University of Sydney, 2008. http://hdl.handle.net/2123/3691.
Full textIn Australian Aboriginal affairs, the acculturative strand of assimilation developed in large part from Elkin’s religious and Idealist commitment, for which in the years 1928 to 1933 he won social-scientific authority. In competition with both an eliminationist politics of race and a segregationist politics of territory, Elkin drew upon religious experience, apologetics, sociology, and networks to establish a ‘positive policy’ as an enduring ideal in Aboriginal affairs. His leadership of the 1930s reform movement began within the Anglican Church, became national through civic-religious organs of publicity, and gained scientific authority as Elkin made religious themes a central concern in Australian anthropology. But from the 1960s until recently, most scholars have lost sight of the centrality of Idealism and religion in our protagonist’s seminal project of acculturative assimilation. This thesis aims to show how Elkin dealt with problems fundamental to twentieth century Aboriginal affairs and indeed to Australian modernity more generally – problems of faith and science, morality and expediency – in developing his positive policy towards Aborigines.
Durran, R. M. "Newtonian diffusions." Thesis, Swansea University, 1991. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.636752.
Full textEvans, M. "Quantum diffusions." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383730.
Full textHarris, Simon Colin. "Branching diffusions." Thesis, University of Cambridge, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.387607.
Full textHardy, Robert. "Branching diffusions." Thesis, University of Bath, 2003. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.410689.
Full textHutzenthaler, Martin. "Interacting locally regulated diffusions." [S.l.] : [s.n.], 2007. http://deposit.ddb.de/cgi-bin/dokserv?idn=985500492.
Full textLane, Jonathon. "Anchorage in Aboriginal affairs: A. P. Elkin on religious continuity and civic obligation." Thesis, The University of Sydney, 2007. http://hdl.handle.net/2123/3691.
Full textBradshaw, W. S. "Quantum diffusions and stochastic cocycles." Thesis, University of Nottingham, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329848.
Full textRobinson, P. "Hochschild cohomology and quantum diffusions." Thesis, University of Nottingham, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233676.
Full textChambeu, Sébastien. "Etude de diffusions auto-agissantes." Paris 11, 2008. http://www.theses.fr/2008PA112015.
Full textIn this thesis we will study self interacting diffusions with a potential V and the penalised (by a function f) occupation measure : \mu_t=\frac{\int_0^t f(s) \delta_{X_ s} ds}{\int_0^t f(s)}. In a first time, in a compact case, with asymptotic pseudo trajectories and a dynamical system on the occupation measure, we give a convergence result (with the notion of attracteur free set) when f verifies such conditions. Then we consider the same processus model living on R with an onemore interaction function g which is solution of the stochastic differential equation dX_t=dB_t - g(t)\nabla V(X_t-\mu_t) dt. In the case where V is an quadratic potential we give such hypothesis on g and f for the convergence of X_t. Then for a linear potential, we prove that the processus is a. S. Bounded. Finally, in the general case, we study the process Y_t:=X_t-\mu_t and the connection between the a. S. (or probability) limit of Y_t and the local (or global) minima of V. In particular, when g=\ln(t) we use the simulated annealing theory
Sabot, Christophe. "Diffusions sur les espaces fractals." Paris 6, 1995. http://www.theses.fr/1995PA066719.
Full textMai, Hilmar. "Drift estimation for jump diffusions." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät II, 2012. http://dx.doi.org/10.18452/16590.
Full textThe problem of parametric drift estimation for a a Lévy-driven jump diffusion process is considered in two different settings: time-continuous and high-frequency observations. The goal is to develop explicit maximum likelihood estimators for both observation schemes that are efficient in the Hájek-Le Cam sense. The likelihood function based on time-continuous observations can be derived explicitly for jump diffusion models and leads to explicit maximum likelihood estimators for several popular model classes. We consider Ornstein-Uhlenbeck type, square-root and linear stochastic delay differential equations driven by Lévy processes in detail and prove strong consistency, asymptotic normality and efficiency of the likelihood estimators in these models. The appearance of the continuous martingale part of the observed process under the dominating measure in the likelihood function leads to a jump filtering problem in this context, since the continuous part is usually not directly observable and can only be approximated and the high-frequency limit. In the second part of this thesis the problem of drift estimation for discretely observed processes is considered. The estimators are constructed from discretizations of the time-continuous maximum likelihood estimators from the first part, where the continuous martingale part is approximated via a thresholding technique. We are able to proof that even in the case of infinite activity jumps of the driving Lévy process the estimator is asymptotically normal and efficient under weak assumptions on the jump behavior. Finally, the finite sample behavior of the estimators is investigated on simulated data. We find that the maximum likelihood approach clearly outperforms the least squares estimator when jumps are present and that the efficiency gap between both techniques becomes even more severe with growing jump intensity.
Dereudre, David, and Sylvie Roelly. "On Gibbsianness of infinite-dimensional diffusions." Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2011/5263/.
Full textRoelly, Sylvie, and David Dereudre. "On Gibbsianness of infinite-dimensional diffusions." Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2006/669/.
Full textAMS Classifications: 60G15
60G60
60H10
60J60
Lunt, John Burnham. "Measurable perturbations of diffusions on manifolds." Thesis, University of Edinburgh, 1992. http://hdl.handle.net/1842/12486.
Full textToinard, Christian. "Etude des diffusions ordonnees sur groupes." Paris 6, 1993. http://www.theses.fr/1993PA066261.
Full textRaimond, Olivier. "Flots stochastiques isotropes et diffusions autoattractives." Paris 11, 1994. http://www.theses.fr/1994PA112407.
Full textThibault, Éric. "Files d'attentes, approximations diffusions, caracteristiques transitoires." Rennes 1, 1998. http://www.theses.fr/1998REN10057.
Full textBrugière, Pierre. "Statistiques des processus de diffusions multidimensionnelles." Paris 9, 1992. https://portail.bu.dauphine.fr/fileviewer/index.php?doc=1992PA090011.
Full textDel, Tenno Ivan. "Asymptotic properties of diffusions in random environment /." Zürich : ETH, 2008. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17798.
Full textFaure, Olivier. "Simulation du mouvement brownien et des diffusions." Phd thesis, Ecole Nationale des Ponts et Chaussées, 1992. http://tel.archives-ouvertes.fr/tel-00523258.
Full textHögele, Michael, and Paulo Ruffino. "Averaging along Lévy diffusions in foliated spaces." Universität Potsdam, 2013. http://opus.kobv.de/ubp/volltexte/2013/6492/.
Full textEtheridge, Alison Mary. "Asymptotic behaviour of some measure-valued diffusions." Thesis, University of Oxford, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.329943.
Full textNoorizadeh, Emad. "Highly degenerate diffusions for sampling molecular systems." Thesis, University of Edinburgh, 2010. http://hdl.handle.net/1842/7584.
Full textAivaliotis, Georgios. "Controlled markov diffusions and mean-variance optimisation." Thesis, University of Leeds, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.509813.
Full textJones, Liza Anne. "Non-colliding diffusions and infinite particle systems." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.496982.
Full textGolalizadeh, Lehi Mousa. "Statistical modelling and inference for shape diffusions." Thesis, University of Nottingham, 2006. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.435446.
Full textRoberts, Matthew. "Spine changes of measure and branching diffusions." Thesis, University of Bath, 2010. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.538554.
Full textPollock, Murray. "Some Monte Carlo methods for jump diffusions." Thesis, University of Warwick, 2013. http://wrap.warwick.ac.uk/60602/.
Full textSchofield, M. J. "Price feedback and hybrid diffusions in finance." Thesis, University College London (University of London), 2015. http://discovery.ucl.ac.uk/1463146/.
Full textDello, Schiavo Lorenzo [Verfasser]. "Diffusions on Wasserstein Spaces / Lorenzo Dello Schiavo." Bonn : Universitäts- und Landesbibliothek Bonn, 2020. http://d-nb.info/1218301228/34.
Full textAl-Sawai, Wael. "Non-equilibrium Phase Transitions in Interacting Diffusions." Scholar Commons, 2018. https://scholarcommons.usf.edu/etd/7660.
Full textManten, Sebastian. "Elektronenstrukturrechnungen mit dem Diffusions-Quanten-Monte-Carlo-Verfahren." [S.l.] : [s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=964983265.
Full textSingh, Arvind. "Diffusions en milieux aléatoires et marches multi-excitées." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2007. http://tel.archives-ouvertes.fr/tel-00158371.
Full textDans la première partie, nous considérons le modèle de la diffusion aléatoire dans un potentiel aléatoire ainsi que son analogue discret : la marche aléatoire en milieu aléatoire. On étudie, dans le cas récurrent, le comportement asymptotique presque sûr de ces processus lorsque le potentiel sous-jacent est dans le domaine d'attraction d'un processus stable. On caractérise ensuite les différents régimes de croissance d'une diffusion transiente lorsque son potentiel est un processus de Lévy sans sauts positifs.
Dans la seconde partie, nous étudions le modèle récent de la marche multi-excitée. Nous établissons en particulier un critère permettant de déterminer si la vitesse asymptotique de la marche est strictement positive. Nous caractérisons de plus, dans le cas d'une vitesse nulle, tous les régimes de transiences possibles.
Gradinaru, Mihai. "Fonctions de Green et support de diffusions hypoelliptiques." Phd thesis, Université Paris Sud - Paris XI, 1995. http://tel.archives-ouvertes.fr/tel-00011820.
Full textla singularité près de la diagonale de la fonction de Green
associée à un opérateur hypoelliptique. L'approche est
probabiliste et repose sur le développement de Taylor
stochastique des trajectoires de la diffusion associée
et sur les estimations à priori de la fonction de Green.
On donne des exemples et des applications à la théorie du
potentiel.
Dans la deuxième partie on étend le théorème de support
de Stroock-Varadhan pour la norme hölderienne. L'outil central
est l'estimation de la probabilité pour que le mouvement brownien
ait une grande norme hölderienne, conditionnellement au fait
qu'il ait une petite norme uniforme.
Spathopoulos, Michael P. "Filtering and stochastic control for diffusions on manifolds." Thesis, Imperial College London, 1987. http://hdl.handle.net/10044/1/46638.
Full textDiether, Michael [Verfasser]. "Wavelet estimation in diffusions with periodicity / Michael Diether." Mainz : Universitätsbibliothek Mainz, 2012. http://d-nb.info/1022300369/34.
Full textHobson, David. "Topics in the long time behaviour of diffusions." Thesis, University of Cambridge, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.259574.
Full textLysy, Martin. "The Method of Batch Inference for Multivariate Diffusions." Thesis, Harvard University, 2012. http://dissertations.umi.com/gsas.harvard:10029.
Full textStatistics
FOURNIE, ERIC. "Statistiques des diffusions ergodiques avec applications en finance." Nice, 1993. http://www.theses.fr/1993NICE4668.
Full textGilliers, Nicolas. "Non-commutative gauge symmetry and pseudo-unitary diffusions." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS113.
Full textThis thesis is devoted to the study of two quite different questions, which are related by the tools that we use to study them. The first question is that of the definition of lattice gauge theories with a non-commutative structure group. Here, by non-commutative, we do not mean non-Abelian, but instead non-commutative in the general sense of non-commutative geometry. The second question is that of the behaviour of Brownian diffusions on non-compact matrix groups of a specific kind, namely groups of pseudo-orthogonal, pseudo-unitary or pseudo-symplectic matrices. In the first chapter, we investigate lattice and continuous quantum gauge theories on the Euclidean plane with a structure group that is replaced by a Zhang algebra. Zhang algebras are non-commutative analogues of groups and contain the class of Voiculescu’s dual groups. We are interested in non-commutative analogues of random gauge fields, which we describe through the random holonomy that they induce. We propose a general definition of a holonomy field with Zhang gauge symmetry, and construct such a field starting from a quantum Lévy process on a Zhang algebra. As an application, we define higher dimensional generalizations of the so-called master field. In the second chapter, we study matricial approximations of higher dimensional master fields constructed in the previous chapter. These approximations (in non-commutative distribution) are obtained by extracting blocks of a Brownian unitary diffusion (with entries in the algebras of real, complex or quaternionic numbers) and letting the dimension of these blocks tend to infinity. We divide our study into two parts: in the first one, we extract square blocks while in the second one we allow rectangular blocks. In both cases, free probability theory appears as the natural framework in which the limiting distributions are most accurately described. In the last two chapters, we use tools introduced (Zhang algebras and coloured Brauer diagrams) in the first two ones to study Brownian motion on pseudo-unitary matrices in high dimensions. We prove convergence in non-commutative distribution of the pseudo-unitary Brownian motions we consider to free with amalgamation semi-groups under the hypothesis of convergence of the normalized signature of the metric. In the split case, meaning that at least asymptotically the metric has as much negative directions as positive ones, the limiting distribution is that of a free Lévy process, which is a solution of a free stochastic differential equation. We leave open the question of such a realization of the limiting distribution in the general case. In addition we provide (intriguing) numerical evidences for the convergence of the spectral distribution of such random matrices and make two conjectures. At the end of the thesis, we prove asymptotic normality for the fluctuations
Goergen, Laurent H. E. "On the asymptotic velocity of diffusions in random environment /." Zürich : ETH, 2007. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=17201.
Full textSeipel, Michael. "Chemische Wellen und Fronten in nichtlinearen Reaktions-Diffusions-Systemen." Doctoral thesis, [S.l. : s.n.], 2002. http://deposit.ddb.de/cgi-bin/dokserv?idn=966178742.
Full textHeineken, Wolfram. "Adaptive Verfahren zur numerischen Berechnung von Reaktions-Diffusions-Systemen." [S.l. : s.n.], 2005. http://deposit.ddb.de/cgi-bin/dokserv?idn=976032198.
Full textAngst, Jürgen. "Etude de diffusions à valeurs dans des variétés lorentziennes." Phd thesis, Université de Strasbourg, 2009. http://tel.archives-ouvertes.fr/tel-00418842.
Full textCe mémoire est composé de deux parties. La première est consacrée à la preuve d'un théorème limite central pour une classe de diffusions minkowskiennes. Elle est motivée par des questions ouvertes de la littérature physique. La seconde partie du manuscrit est consacrée à l'étude détaillée d'une diffusion relativiste à valeurs dans les espaces de Robertson-Walker. En fonction de la courbure et de la vitesse d'expansion de ces espaces, nous déterminons précisément le comportement asymptotique de la diffusion relativiste et montrons que ses trajectoires approchent asymptotiquement des géodésiques de lumière aléatoires. Pour une classe d'espaces de Robertson-Walker, nous explicitons en outre la frontière de Poisson de la diffusion relativiste.
Dereudre, David, and Sylvie Roelly. "Propagation of Gibbsianness for infinite-dimensional gradient Brownian diffusions." Universität Potsdam, 2004. http://opus.kobv.de/ubp/volltexte/2011/5153/.
Full textSlade, Alexander Mason Electrical Engineering UNSW. "Boron tribromide sourced boron diffusions for silicon solar cells." Awarded by:University of New South Wales. Electrical Engineering, 2005. http://handle.unsw.edu.au/1959.4/21850.
Full textGill, Hardeep Singh. "Interacting measure-valued diffusions and their long-term behavior." Thesis, University of British Columbia, 2011. http://hdl.handle.net/2429/36923.
Full text