Smoothing and Decay Estimates for Nonlinear Diffusion Equations

Smoothing and Decay Estimates for Nonlinear Diffusion Equations PDF Author: Juan Luis Vázquez
Publisher: Oxford University Press
ISBN: 0199202974
Category : Mathematics
Languages : en
Pages : 249

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Book Description
This text is concerned with quantitative aspects of the theory of nonlinear diffusion equations, whichappear as mathematical models in different branches of Physics, Chemistry, Biology and Engineering.

Smoothing and Decay Estimates for Nonlinear Diffusion Equations

Smoothing and Decay Estimates for Nonlinear Diffusion Equations PDF Author: Juan Luis Vázquez
Publisher: Oxford University Press
ISBN: 0199202974
Category : Mathematics
Languages : en
Pages : 249

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Book Description
This text is concerned with quantitative aspects of the theory of nonlinear diffusion equations, whichappear as mathematical models in different branches of Physics, Chemistry, Biology and Engineering.

Smoothing and Decay Estimates for Nonlinear Diffusion Equations

Smoothing and Decay Estimates for Nonlinear Diffusion Equations PDF Author: Juan Luis Vázquez
Publisher: OUP Oxford
ISBN: 0191525251
Category : Mathematics
Languages : en
Pages : 248

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Book Description
This text is concerned with the quantitative aspects of the theory of nonlinear diffusion equations; equations which can be seen as nonlinear variations of the classical heat equation. They appear as mathematical models in different branches of Physics, Chemistry, Biology, and Engineering, and are also relevant in differential geometry and relativistic physics. Much of the modern theory of such equations is based on estimates and functional analysis. Concentrating on a class of equations with nonlinearities of power type that lead to degenerate or singular parabolicity ("equations of porous medium type"), the aim of this text is to obtain sharp a priori estimates and decay rates for general classes of solutions in terms of estimates of particular problems. These estimates are the building blocks in understanding the qualitative theory, and the decay rates pave the way to the fine study of asymptotics. Many technically relevant questions are presented and analyzed in detail. A systematic picture of the most relevant phenomena is obtained for the equations under study, including time decay, smoothing, extinction in finite time, and delayed regularity.

The Porous Medium Equation

The Porous Medium Equation PDF Author: Juan Luis Vazquez
Publisher: Oxford University Press on Demand
ISBN: 0198569033
Category : Mathematics
Languages : en
Pages : 647

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Book Description
Aimed at research students and academics in mathematics and engineering, as well as engineering specialists, this book provides a systematic and comprehensive presentation of the mathematical theory of the nonlinear heat equation usually called the Porous Medium Equation.

Nonlinear Diffusion Equations

Nonlinear Diffusion Equations PDF Author: Zhuoqun Wu
Publisher: World Scientific
ISBN: 9810247184
Category : Mathematics
Languages : en
Pages : 521

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Book Description
Nonlinear diffusion equations, an important class of parabolic equations, come from a variety of diffusion phenomena which appear widely in nature. They are suggested as mathematical models of physical problems in many fields, such as filtration, phase transition, biochemistry and dynamics of biological groups. In many cases, the equations possess degeneracy or singularity. The appearance of degeneracy or singularity makes the study more involved and challenging. Many new ideas and methods have been developed to overcome the special difficulties caused by the degeneracy and singularity, which enrich the theory of partial differential equations.This book provides a comprehensive presentation of the basic problems, main results and typical methods for nonlinear diffusion equations with degeneracy. Some results for equations with singularity are touched upon.

Nonlinear Partial Differential Equations

Nonlinear Partial Differential Equations PDF Author: Helge Holden
Publisher: Springer Science & Business Media
ISBN: 364225361X
Category : Mathematics
Languages : en
Pages : 369

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Book Description
The topic of the 2010 Abel Symposium, hosted at the Norwegian Academy of Science and Letters, Oslo, was Nonlinear Partial Differential Equations, the study of which is of fundamental importance in mathematics and in almost all of natural sciences, economics, and engineering. This area of mathematics is currently in the midst of an unprecedented development worldwide. Differential equations are used to model phenomena of increasing complexity, and in areas that have traditionally been outside the realm of mathematics. New analytical tools and numerical methods are dramatically improving our understanding of nonlinear models. Nonlinearity gives rise to novel effects reflected in the appearance of shock waves, turbulence, material defects, etc., and offers challenging mathematical problems. On the other hand, new mathematical developments provide new insight in many applications. These proceedings present a selection of the latest exciting results by world leading researchers.

Current Research in Nonlinear Analysis

Current Research in Nonlinear Analysis PDF Author: Themistocles M. Rassias
Publisher: Springer
ISBN: 3319898000
Category : Mathematics
Languages : en
Pages : 360

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Book Description
Current research and applications in nonlinear analysis influenced by Haim Brezis and Louis Nirenberg are presented in this book by leading mathematicians. Each contribution aims to broaden reader’s understanding of theories, methods, and techniques utilized to solve significant problems. Topics include: Sobolev Spaces Maximal monotone operators A theorem of Brezis-Nirenberg Operator-norm convergence of the Trotter product formula Elliptic operators with infinitely many variables Pseudo-and quasiconvexities for nonsmooth function Anisotropic surface measures Eulerian and Lagrangian variables Multiple periodic solutions of Lagrangian systems Porous medium equation Nondiscrete Lassonde-Revalski principle Graduate students and researchers in mathematics, physics, engineering, and economics will find this book a useful reference for new techniques and research areas. Haim Brezis and Louis Nirenberg’s fundamental research in nonlinear functional analysis and nonlinear partial differential equations along with their years of teaching and training students have had a notable impact in the field.

Harnack's Inequality for Degenerate and Singular Parabolic Equations

Harnack's Inequality for Degenerate and Singular Parabolic Equations PDF Author: Emmanuele DiBenedetto
Publisher: Springer Science & Business Media
ISBN: 1461415845
Category : Mathematics
Languages : en
Pages : 287

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Book Description
Degenerate and singular parabolic equations have been the subject of extensive research for the last 25 years. Despite important achievements, the issue of the Harnack inequality for non-negative solutions to these equations, both of p-Laplacian and porous medium type, while raised by several authors, has remained basically open. Recently considerable progress has been made on this issue, to the point that, except for the singular sub-critical range, both for the p-laplacian and the porous medium equations, the theory is reasonably complete. It seemed therefore timely to trace a comprehensive overview, that would highlight the main issues and also the problems that still remain open. The authors give a comprehensive treatment of the Harnack inequality for non-negative solutions to p-laplace and porous medium type equations, both in the degenerate (p/i”2 or im/i”1) and in the singular range (1“ip/i2 or 0“im/i

Stochastic Analysis: A Series of Lectures

Stochastic Analysis: A Series of Lectures PDF Author: Robert C. Dalang
Publisher: Birkhäuser
ISBN: 3034809093
Category : Mathematics
Languages : en
Pages : 393

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Book Description
This book presents in thirteen refereed survey articles an overview of modern activity in stochastic analysis, written by leading international experts. The topics addressed include stochastic fluid dynamics and regularization by noise of deterministic dynamical systems; stochastic partial differential equations driven by Gaussian or Lévy noise, including the relationship between parabolic equations and particle systems, and wave equations in a geometric framework; Malliavin calculus and applications to stochastic numerics; stochastic integration in Banach spaces; porous media-type equations; stochastic deformations of classical mechanics and Feynman integrals and stochastic differential equations with reflection. The articles are based on short courses given at the Centre Interfacultaire Bernoulli of the Ecole Polytechnique Fédérale de Lausanne, Switzerland, from January to June 2012. They offer a valuable resource not only for specialists, but also for other researchers and Ph.D. students in the fields of stochastic analysis and mathematical physics. Contributors: S. Albeverio M. Arnaudon V. Bally V. Barbu H. Bessaih Z. Brzeźniak K. Burdzy A.B. Cruzeiro F. Flandoli A. Kohatsu-Higa S. Mazzucchi C. Mueller J. van Neerven M. Ondreját S. Peszat M. Veraar L. Weis J.-C. Zambrini

Methods Of Geometry In The Theory Of Partial Differential Equations: Principle Of The Cancellation Of Singularities

Methods Of Geometry In The Theory Of Partial Differential Equations: Principle Of The Cancellation Of Singularities PDF Author: Takashi Suzuki
Publisher: World Scientific
ISBN: 9811287910
Category : Mathematics
Languages : en
Pages : 414

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Book Description
Mathematical models are used to describe the essence of the real world, and their analysis induces new predictions filled with unexpected phenomena.In spite of a huge number of insights derived from a variety of scientific fields in these five hundred years of the theory of differential equations, and its extensive developments in these one hundred years, several principles that ensure these successes are discovered very recently.This monograph focuses on one of them: cancellation of singularities derived from interactions of multiple species, which is described by the language of geometry, in particular, that of global analysis.Five objects of inquiry, scattered across different disciplines, are selected in this monograph: evolution of geometric quantities, models of multi-species in biology, interface vanishing of d - δ systems, the fundamental equation of electro-magnetic theory, and free boundaries arising in engineering.The relaxation of internal tensions in these systems, however, is described commonly by differential forms, and the reader will be convinced of further applications of this principle to other areas.

Stochastic Processes and Functional Analysis

Stochastic Processes and Functional Analysis PDF Author: Randall J. Swift
Publisher: American Mathematical Society
ISBN: 1470459825
Category : Mathematics
Languages : en
Pages : 248

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Book Description
This volume contains the proceedings of the AMS Special Session on Celebrating M. M. Rao's Many Mathematical Contributions as he Turns 90 Years Old, held from November 9–10, 2019, at the University of California, Riverside, California. The articles show the effectiveness of abstract analysis for solving fundamental problems of stochastic theory, specifically the use of functional analytic methods for elucidating stochastic processes and their applications. The volume also includes a biography of M. M. Rao and the list of his publications.