Homogenization Of Partial Differential Equations
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Homogenization of Partial Differential Equations
Author | : Vladimir A. Marchenko,Evgueni Ya. Khruslov |
Publsiher | : Springer Science & Business Media |
Total Pages | : 407 |
Release | : 2008-12-22 |
Genre | : Mathematics |
ISBN | : 9780817644680 |
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A comprehensive study of homogenized problems, focusing on the construction of nonstandard models Details a method for modeling processes in microinhomogeneous media (radiophysics, filtration theory, rheology, elasticity theory, and other domains) Complete proofs of all main results, numerous examples Classroom text or comprehensive reference for graduate students, applied mathematicians, physicists, and engineers
Emerging Problems in the Homogenization of Partial Differential Equations
Author | : Patrizia Donato,Manuel Luna-Laynez |
Publsiher | : Springer Nature |
Total Pages | : 122 |
Release | : 2021-02-01 |
Genre | : Mathematics |
ISBN | : 9783030620301 |
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This book contains some of the results presented at the mini-symposium titled Emerging Problems in the Homogenization of Partial Differential Equations, held during the ICIAM2019 conference in Valencia in July 2019. The papers cover a large range of topics, problems with weak regularity data involving renormalized solutions, eigenvalue problems for complicated shapes of the domain, homogenization of partial differential problems with strongly alternating boundary conditions of Robin type with large parameters, multiscale analysis of the potential action along a neuron with a myelinated axon, and multi-scale model of magnetorheological suspensions. The volume is addressed to scientists who deal with complex systems that presents several elements (characteristics, constituents...) of very different scales, very heterogeneous, and search for homogenized models providing an effective (macroscopic) description of their behaviors.
Homogenization of Differential Operators and Integral Functionals
Author | : V.V. Jikov,S.M. Kozlov,O.A. Oleinik |
Publsiher | : Springer Science & Business Media |
Total Pages | : 583 |
Release | : 2012-12-06 |
Genre | : Mathematics |
ISBN | : 9783642846595 |
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It was mainly during the last two decades that the theory of homogenization or averaging of partial differential equations took shape as a distinct mathe matical discipline. This theory has a lot of important applications in mechanics of composite and perforated materials, filtration, disperse media, and in many other branches of physics, mechanics and modern technology. There is a vast literature on the subject. The term averaging has been usually associated with the methods of non linear mechanics and ordinary differential equations developed in the works of Poincare, Van Der Pol, Krylov, Bogoliubov, etc. For a long time, after the works of Maxwell and Rayleigh, homogeniza tion problems for· partial differential equations were being mostly considered by specialists in physics and mechanics, and were staying beyond the scope of mathematicians. A great deal of attention was given to the so called disperse media, which, in the simplest case, are two-phase media formed by the main homogeneous material containing small foreign particles (grains, inclusions). Such two-phase bodies, whose size is considerably larger than that of each sep arate inclusion, have been discovered to possess stable physical properties (such as heat transfer, electric conductivity, etc.) which differ from those of the con stituent phases. For this reason, the word homogenized, or effective, is used in relation to these characteristics. An enormous number of results, approximation formulas, and estimates have been obtained in connection with such problems as electromagnetic wave scattering on small particles, effective heat transfer in two-phase media, etc.
Emerging Problems in the Homogenization of Partial Differential Equations
![Emerging Problems in the Homogenization of Partial Differential Equations](https://youbookinc.com/wp-content/uploads/2024/06/cover.jpg)
Author | : Patrizia Donato,Manuel Luna-Laynez |
Publsiher | : Unknown |
Total Pages | : 0 |
Release | : 2021 |
Genre | : Electronic Book |
ISBN | : 303062031X |
Download Emerging Problems in the Homogenization of Partial Differential Equations Book in PDF, Epub and Kindle
This book contains some of the results presented at the mini-symposium titled Emerging Problems in the Homogenization of Partial Differential Equations, held during the ICIAM2019 conference in Valencia in July 2019. The papers cover a large range of topics, problems with weak regularity data involving renormalized solutions, eigenvalue problems for complicated shapes of the domain, homogenization of partial differential problems with strongly alternating boundary conditions of Robin type with large parameters, multiscale analysis of the potential action along a neuron with a myelinated axon, and multi-scale model of magnetorheological suspensions. The volume is addressed to scientists who deal with complex systems that presents several elements (characteristics, constituents...) of very different scales, very heterogeneous, and search for homogenized models providing an effective (macroscopic) description of their behaviors. .
G Convergence and Homogenization of Nonlinear Partial Differential Operators
Author | : A.A. Pankov |
Publsiher | : Springer Science & Business Media |
Total Pages | : 276 |
Release | : 1997-09-30 |
Genre | : Mathematics |
ISBN | : 079234720X |
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Various applications of the homogenization theory of partial differential equations resulted in the further development of this branch of mathematics, attracting an increasing interest of both mathematicians and experts in other fields. In general, the theory deals with the following: Let Ak be a sequence of differential operators, linear or nonlinepr. We want to examine the asymptotic behaviour of solutions uk to the equation Auk = f, as k ~ =, provided coefficients of Ak contain rapid oscillations. This is the case, e. g. when the coefficients are of the form a(e/x), where the function a(y) is periodic and ek ~ 0 ask~=. Of course, of oscillation, like almost periodic or random homogeneous, are of many other kinds interest as well. It seems a good idea to find a differential operator A such that uk ~ u, where u is a solution of the limit equation Au = f Such a limit operator is usually called the homogenized operator for the sequence Ak . Sometimes, the term "averaged" is used instead of "homogenized". Let us look more closely what kind of convergence one can expect for uk. Usually, we have some a priori bound for the solutions. However, due to the rapid oscillations of the coefficients, such a bound may be uniform with respect to k in the corresponding energy norm only. Therefore, we may have convergence of solutions only in the weak topology of the energy space.
Numerical Homogenization by Localized Decomposition
Author | : Axel Målqvist,Daniel Peterseim |
Publsiher | : SIAM |
Total Pages | : 120 |
Release | : 2020-11-23 |
Genre | : Mathematics |
ISBN | : 9781611976458 |
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This book presents the first survey of the Localized Orthogonal Decomposition (LOD) method, a pioneering approach for the numerical homogenization of partial differential equations with multiscale data beyond periodicity and scale separation. The authors provide a careful error analysis, including previously unpublished results, and a complete implementation of the method in MATLAB. They also reveal how the LOD method relates to classical homogenization and domain decomposition. Illustrated with numerical experiments that demonstrate the significance of the method, the book is enhanced by a survey of applications including eigenvalue problems and evolution problems. Numerical Homogenization by Localized Orthogonal Decomposition is appropriate for graduate students in applied mathematics, numerical analysis, and scientific computing. Researchers in the field of computational partial differential equations will find this self-contained book of interest, as will applied scientists and engineers interested in multiscale simulation.
G Convergence and Homogenization of Nonlinear Partial Differential Operators
Author | : A. A. Pankov |
Publsiher | : Unknown |
Total Pages | : 278 |
Release | : 2014-01-15 |
Genre | : Electronic Book |
ISBN | : 9401589585 |
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The General Theory of Homogenization
Author | : Luc Tartar |
Publsiher | : Springer Science & Business Media |
Total Pages | : 466 |
Release | : 2009-12-03 |
Genre | : Science |
ISBN | : 9783642051951 |
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Homogenization is not about periodicity, or Gamma-convergence, but about understanding which effective equations to use at macroscopic level, knowing which partial differential equations govern mesoscopic levels, without using probabilities (which destroy physical reality); instead, one uses various topologies of weak type, the G-convergence of Sergio Spagnolo, the H-convergence of François Murat and the author, and some responsible for the appearance of nonlocal effects, which many theories in continuum mechanics or physics guessed wrongly. For a better understanding of 20th century science, new mathematical tools must be introduced, like the author’s H-measures, variants by Patrick Gérard, and others yet to be discovered.