Literatura académica sobre el tema "Méthode de la décomposition de la dimension"
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Artículos de revistas sobre el tema "Méthode de la décomposition de la dimension"
Gander, Martin J. y Laurence Halpern. "Méthodes de décomposition de domaines pour l'équation des ondes en dimension 1". Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 333, n.º 6 (septiembre de 2001): 589–92. http://dx.doi.org/10.1016/s0764-4442(01)02084-5.
Texto completoAuffray, Nicolas. "Décomposition harmonique des tenseurs – Méthode spectrale". Comptes Rendus Mécanique 336, n.º 4 (abril de 2008): 370–75. http://dx.doi.org/10.1016/j.crme.2007.12.005.
Texto completoEscaig, Yves, Michel Vayssade y Gilbert Touzot. "Une méthode de décomposition de domaines multifrontale multiniveaux". Revue Européenne des Éléments Finis 3, n.º 3 (enero de 1994): 311–37. http://dx.doi.org/10.1080/12506559.1994.10511133.
Texto completoKahane, Jean-Pierre y Yitzhak Katznelson. "Décomposition des mesures selon la dimension". Colloquium Mathematicum 58, n.º 2 (1990): 269–79. http://dx.doi.org/10.4064/cm-58-2-269-279.
Texto completoAgouzal, Abdellatif y Jean-Marie Thomas. "Une méthode d'éléments finis hybrides en décomposition de domaines". ESAIM: Mathematical Modelling and Numerical Analysis 29, n.º 6 (1995): 749–64. http://dx.doi.org/10.1051/m2an/1995290607491.
Texto completoSantis, Gustavo De y Massimo Livi Bacci. "La reproduction des populations: Une méthode de décomposition et d'estimation". Population (French Edition) 52, n.º 5 (septiembre de 1997): 1119. http://dx.doi.org/10.2307/1534532.
Texto completoChapuis, Robert P. "Méthode de décomposition modale : description quantitative de la granulométrie et autres paramètres". Revue Française de Géotechnique, n.º 154 (2018): 1. http://dx.doi.org/10.1051/geotech/2018001.
Texto completoMartin, Véronique. "Méthode de décomposition de domaine et de couplage pour des problèmes d’évolution". Annales mathématiques Blaise Pascal 9, n.º 2 (2002): 299–312. http://dx.doi.org/10.5802/ambp.162.
Texto completoNataf, Frédéric. "Conditions d'interface pour les méthodes de décomposition de domaine pour le système d'Oseen en dimensions 2 et 3". Comptes Rendus de l'Académie des Sciences - Series I - Mathematics 324, n.º 10 (mayo de 1997): 1155–60. http://dx.doi.org/10.1016/s0764-4442(97)87904-9.
Texto completoRoyer, Alexandre, Stéphane Mocanu y Christian Commault. "Méthode de décomposition pour l'évaluation de performance de réseaux linéaires de routeurs ON/OFF". Techniques et sciences informatiques 24, n.º 2-3 (1 de marzo de 2005): 179–202. http://dx.doi.org/10.3166/tsi.24.179-202.
Texto completoTesis sobre el tema "Méthode de la décomposition de la dimension"
Danwé, Raïdandi. "Une méthode simplifiée pour l'étude d'assemblage de structures". Cachan, Ecole normale supérieure, 1993. http://www.theses.fr/1993DENS0010.
Texto completoPréaux, Jean-Philippe. "Problème de conjugaison dans le groupe d'une 3-variété orientée vérifiant l'hypothèse de géométrisation de Thurston". Aix-Marseille 1, 2001. http://www.theses.fr/2001AIX11062.
Texto completoNeamatian, Monemi Rahimeh. "Fixed cardinality linear ordering problem, polyhedral studies and solution methods". Thesis, Clermont-Ferrand 2, 2014. http://www.theses.fr/2014CLF22516/document.
Texto completoLinear Ordering Problem (LOP) has receive significant attention in different areas of application, ranging from transportation and scheduling to economics and even archeology and mathematical psychology. It is classified as a NP-hard problem. Assume a complete weighted directed graph on V n , |V n |= n. A permutation of the elements of this finite set of vertices is a linear order. Now let p be a given fixed integer number, 0 ≤ p ≤ n. The p-Fixed Cardinality Linear Ordering Problem (FCLOP) is looking for a subset of vertices containing p nodes and a linear order on the nodes in S. Graphically, there exists exactly one directed arc between every pair of vertices in an LOP feasible solution, which is also a complete cycle-free digraph and the objective is to maximize the sum of the weights of all the arcs in a feasible solution. In the FCLOP, we are looking for a subset S ⊆ V n such that |S|= p and an LOP on these S nodes. Hence the objective is to find the best subset of the nodes and an LOP over these p nodes that maximize the sum of the weights of all the arcs in the solution. Graphically, a feasible solution of the FCLOP is a complete cycle-free digraph on S plus a set of n − p vertices that are not connected to any of the other vertices. There are several studies available in the literature focused on polyhedral aspects of the linear ordering problem as well as various exact and heuristic solution methods. The fixed cardinality linear ordering problem is presented for the first time in this PhD study, so as far as we know, there is no other study in the literature that has studied this problem. The linear ordering problem is already known as a NP-hard problem. However one sees that there exist many instances in the literature that can be solved by CPLEX in less than 10 seconds (when p = n), but once the cardinality number is limited to p (p < n), the instance is not anymore solvable due to the memory issue. We have studied the polytope corresponding to the FCLOP for different cardinality values. We have identified dimension of the polytope, proposed several classes of valid inequalities and showed that among these sets of valid inequalities, some of them are defining facets for the FCLOP polytope for different cardinality values. We have then introduced a Relax-and-Cut algorithm based on these results to solve instances of the FCLOP. To solve the instances of the problem, in the beginning, we have applied the Lagrangian relaxation algorithm. We have studied different relaxation strategies and compared the dual bound obtained from each case to detect the most suitable subproblem. Numerical results show that some of the relaxation strategies result better dual bound and some other contribute more in reducing the computational time and provide a relatively good dual bound in a shorter time. We have also implemented a Lagrangian decomposition algorithm, decom-6 posing the FCLOP model to three subproblems (instead of only two subproblems). The interest of decomposing the FCLOP model to three subproblems comes mostly from the nature of the three subproblems, which are relatively quite easier to solve compared to the initial FCLOP model. Numerical results show a significant improvement in the quality of dual bounds for several instances. We could also obtain relatively quite better dual bounds in a shorter time comparing to the other relaxation strategies. We have proposed a cutting plane algorithm based on the pure relaxation strategy. In this algorithm, we firstly relax a subset of constraints that due to the problem structure, a very few number of them are active. Then in the course of the branch-and-bound tree we verify if there exist any violated constraint among the relaxed constraints or. Then the characterized violated constraints will be globally added to the model. (...)
Riahi, Hassen. "Analyse de structures à dimension stochastique élevée : application aux toitures bois sous sollicitation sismique". Phd thesis, Université Blaise Pascal - Clermont-Ferrand II, 2013. http://tel.archives-ouvertes.fr/tel-00881187.
Texto completoThirion, Bertrand. "Analyse de données d' IRM fonctionnelle : statistiques, information et dynamique". Phd thesis, Télécom ParisTech, 2003. http://tel.archives-ouvertes.fr/tel-00457460.
Texto completoTayachi, Manel. "Couplage de modèles de dimensions hétérogènes et application en hydrodynamique". Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENM031/document.
Texto completoThe work presented here focuses on electrodes made of silicon, a promising material to replace graphite as an anode active material for Li-ion Batteries (LIBs). The first part of the manuscript is dedicated to the study of silicon (de)lithiation mechanisms by Auger Electron Spectroscopy (AES). By using this technique of surface characterization, which allows investigating individual particles in their electrode environment, our results show that the first silicon lithiation occurs through a two-phase region mechanism cr-Si / a-Li3,1Si, whereas the following (de)lithiation steps are solid solution type process. Upon (de)alloying with lithium, silicon particles undergo huge volume variations leading to a quick capacity fading. By combining several techniques of characterization, the failure mechanisms of a silicon electrode are studied during aging. In particular, by using electrochemical impedance spectroscopy and mercury porosimetry analyses, an impressive dynamic upon cycling of the electrode porosity is shown. A model, which mainly attributes the capacity fading to the Solid Electrolyte Interphase instability at the silicon particles surface, is proposed. To try to stabilize this passivation layer and thus improve silicon electrodes electrochemical performances, the influence of two parameters is studied: the electrolyte and the “lithiation domain” of silicon; the latter is associated with the evolution of the active material composition upon cycling. Finally, by using these last results, promising performances are obtained for silicon electrode containing LIBs
Zepeda, Salvatierra Joaquin. "Nouvelles méthodes de représentations parcimonieuses ; application à la compression et l'indexation d'images". Phd thesis, Université Rennes 1, 2010. http://tel.archives-ouvertes.fr/tel-00567851.
Texto completoKamel, Slimani. "Estimation a posteriori et méthode de décomposition de domaine". Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0025.
Texto completoThis thesis is devoted to numerical analysis in particular a postoriori estimates of the error in the method of asymptotic partial domain decomposition. There are problems in linear elliptic partial and semi-linear with a source which depends only of one variable in a portion of domain. Method of Asymptotic Partial Decomposition of a Domain (MAPDD) originates from the works of Grigori.Panasonko [12, 13]. The idea is to replace an original 3D or 2D problem by a hybrid one 3D − 1D; or 2D − 1D, where the dimension of the problem decreases in part of domain. Effective solution methods for the resulting hybrid problem have recently become available for several systems (linear/nonlinear, fluid/solid, etc.) which allow for each subproblem to be computed with an independent black-box code [21, 17, 18]. The location of the junction between the heterogeneous problems is asymptotically estimated in the works of Panasenko [12]. MAPDD has been designed for handling problems where a small parameter appears, and provides a series expansion of the solution with solutions of simplified problems with respect to this small parameter. In the problem considered in chapter 3 and 4, no small parameter exists, but due to geometrical considerations concerning the domain Ω it is assumed that the solution does not differ very much from a function which depends only on one variable in a part of the domain. The MAPDD theory is not suited for such a context, but if this theory is applied formally it does not provide any error estimate. The a posteriori error estimate proved in this chapter 3 and 4, is able to measure the discrepancy between the exact solution and the hybrid solution which corresponds to the zero-order term in the series expansion with respect to a small parameter when it exists. Numerically, independently of the existence of an asymptotical estimate of the location of the junction, it is essential to detect with accuracy the location of the junction. Let us also mention the interest of locating with accuracy the position of the junction in blood flows simulations [23]. Here in this chapter 3,4 the method proposed is to determine the location of the junction (i.e. the location of the boundary Γ in the example treated) by using optimization techniques. First it is shown that MAPDD can be expressed with a mixed domain decomposition formulation (as in [22]) in two different ways. Then it is proposed to use an a posteriori error estimate for locating the best position of the junction. A posteriori error estimates have been extensively used in optimization problems, the reader is referred to, e.g. [1, 11]
Xing, Feng. "Méthode de décomposition de domaines pour l’équation de Schrödinger". Thesis, Lille 1, 2014. http://www.theses.fr/2014LIL10127/document.
Texto completoThis thesis focuses on the development and implementation of domain decomposition methods (DD) for the linear or non-linear Schrödinger equations in one or two dimensions. In the first part, we focus on the Schwarz waveform relaxation method (SWR) for the one dimensional Schrödinger equation. In the case the potential is linear and time-independent, we propose a new algorithm that is scalable and allows a significant reduction of computation time compared with the classical algorithm. For a general potential, we use a linear operator previously defined as a preconditioner. This ensures high scalability. We also generalize the work of Halpern and Szeftel on transmission condition. We use the absorbing boundary conditions recently constructed by Antoine, Besse and Klein as the transmission condition. We also adapt the codes developed originally on Cpus to the Gpu. The second part concerns with the methods DD for the Schrödinger equation in two dimensions. We generalize the new algorithm and the preconditioned algorithm proposed in the first part to the case of two dimensions. Furthermore, in Chapter 6, we generalize the work of Loisel on the optimized Schwarz method with cross points for the Laplace equation, which leads to the SWR method with cross points. In the last part, we apply the domain decomposition methods we studied to the simulation of Bose-Einstein condensate that could not only reduce the total computation time, but also realise the larger simulations
Fontvieille, Franck. "Décomposition Asymptotique et éléments finis". Lyon, INSA, 2004. http://theses.insa-lyon.fr/publication/2004ISAL0029/these.pdf.
Texto completoThis thesis is devoted to the numerical analysis and simulation by finite element of asymptotic decomposition problems. These are partial differential equation problems, an information about the behaviour of the solutions on a part of the domain is available. This information is used in order to improve the efficiency of numerical methods and is accounted for through the basis functions of the finite element method. It generates particular basis functions : "super-element functions". In a first and very short chapter, we introduce the MAPDD, Method of Asymptotic Partial Domain Decomposition. In a second and thord chapter, one apply and justify \textit{via} asymptotic expansion this strategy for a monodimensionnal singular perturbation problem arising in the shell theory and for Poisson equation on a thin domain. We propose a efficient finite element method which save numerous nodes. Optimal error estimates are given, the same order is obtain with a classical finite element method. In a fourth chapter, one interests in coupling piecewise monodimensionnal and bidimensionnal problems for Poisson equation. One disconnects the domains and glu then by the way of a Lagrange multiplier in a saddle-point problem. Error estimates are given for the finite element approximation of this problem. We show that this approache generalizes the method by "super-element". In a fifth prospective chapter, we deal with the numerical treatment of two problem of the litterature. An adhesive joint, and a transport problem in a least square formulation. We propose a 2D-1D modelisation
Libros sobre el tema "Méthode de la décomposition de la dimension"
An introduction to models and decompositions in operator theory. Boston: Birkhäuser, 1997.
Buscar texto completoMEURANT y G. Meurant. Computer Solution of Large Linear Systems. North Holland, 1999.
Buscar texto completoCapítulos de libros sobre el tema "Méthode de la décomposition de la dimension"
Carpentier, Pierre y Guy Cohen. "Extensions de la méthode du gradient stochastique". En Décomposition-coordination en optimisation déterministe et stochastique, 235–48. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-55428-9_10.
Texto completoCarpentier, Pierre y Guy Cohen. "Vue d’ensemble de la méthode du gradient stochastique". En Décomposition-coordination en optimisation déterministe et stochastique, 167–93. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-55428-9_7.
Texto completoKUZNETSOV, Igor y Nickolay KUZNETSOV. "Méthodes de simulation rapide en files d’attente pour la résolution de certains problèmes combinatoires de grande taille". En Théorie des files d’attente 1, 167–205. ISTE Group, 2021. http://dx.doi.org/10.51926/iste.9001.ch6.
Texto completoCoqueugniot, Hélène. "Paléo-imagerie par rayons X : une méthode d’exploration transdisciplinaire, de l’archéologie à la chirurgie Hélène". En Regards croisés: quand les sciences archéologiques rencontrent l'innovation, 139–56. Editions des archives contemporaines, 2017. http://dx.doi.org/10.17184/eac.3794.
Texto completoActas de conferencias sobre el tema "Méthode de la décomposition de la dimension"
ADNAOUI, Khalid, Nourdine TOUNSI, Mohamed CHAGDALI y Soumia MORDANE. "Méthode de décomposition du domaine pour la modélisation numérique d’un jet par la méthode particule-maillage". En Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2014. http://dx.doi.org/10.5150/jngcgc.2014.002.
Texto completoMORDANE, Soumia, Khalid ADNAOUI, Mohamed LOUKILI, Noureddine TOUNSI y Mohamed CHAGDALI. "La méthode de décomposition du domaine : Application à un problème de soutirage". En Conférence Méditerranéenne Côtière et Maritime - Coastal and Maritime Mediterranean Conference. Editions Paralia, 2015. http://dx.doi.org/10.5150/cmcm.2015.063.
Texto completoZhang, Bainian, Bruno Bader, Philippe Sergent y Pierre Debaillon. "Calcul de l’agitation de houle sur un cluster de PCs à l’aide de la méthode de décomposition de domaines". En Journées Nationales Génie Côtier - Génie Civil. Editions Paralia, 2008. http://dx.doi.org/10.5150/jngcgc.2008.043-z.
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