Boundary Value Problems for Nonlinear Elliptic Equations and Systems

Boundary Value Problems for Nonlinear Elliptic Equations and Systems PDF Author: Kumud Singh (Mrs.))
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Boundary Value Problems for Nonlinear Elliptic Equations and Systems

Boundary Value Problems for Nonlinear Elliptic Equations and Systems PDF Author: Kumud Singh (Mrs.))
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Boundary Value Problems for Elliptic Equations and Systems

Boundary Value Problems for Elliptic Equations and Systems PDF Author: Guo Chun Wen
Publisher: Chapman & Hall/CRC
ISBN:
Category : Mathematics
Languages : en
Pages : 432

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Book Description
This monograph mainly deals with several boundary value problems for linear and nonlinear elliptic equations and systems by using function theoretic methods. The established theory is systematic, the considered equations and systems, boundary conditions and domains are rather general. Various methods are used. As an application, the existence of nonlinear quasiconformal mappings onto canonical domains is proved.

Boundary Value Problems for Nonlinear Elliptic Equations in Divergence Form

Boundary Value Problems for Nonlinear Elliptic Equations in Divergence Form PDF Author: Abubakar Mwasa
Publisher: Linköping University Electronic Press
ISBN: 9179296890
Category : Electronic books
Languages : en
Pages : 22

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Book Description
The thesis consists of three papers focussing on the study of nonlinear elliptic partial differential equations in a nonempty open subset Ω of the n-dimensional Euclidean space Rn. We study the existence and uniqueness of the solutions, as well as their behaviour near the boundary of Ω. The behaviour of the solutions at infinity is also discussed when Ω is unbounded. In Paper A, we consider a mixed boundary value problem for the p-Laplace equation ∆pu := div(|∇u| p−2∇u) = 0 in an open infinite circular half-cylinder with prescribed Dirichlet boundary data on a part of the boundary and zero Neumann boundary data on the rest. By a suitable transformation of the independent variables, this mixed problem is transformed into a Dirichlet problem for a degenerate (weighted) elliptic equation on a bounded set. By analysing the transformed problem in weighted Sobolev spaces, it is possible to obtain the existence of continuous weak solutions to the mixed problem, both for Sobolev and for continuous data on the Dirichlet part of the boundary. A characterisation of the boundary regularity of the point at infinity is obtained in terms of a new variational capacity adapted to the cylinder. In Paper B, we study Perron solutions to the Dirichlet problem for the degenerate quasilinear elliptic equation div A(x, ∇u) = 0 in a bounded open subset of Rn. The vector-valued function A satisfies the standard ellipticity assumptions with a parameter 1 < p < ∞ and a p-admissible weight w. For general boundary data, the Perron method produces a lower and an upper solution, and if they coincide then the boundary data are called resolutive. We show that arbitrary perturbations on sets of weighted p-capacity zero of continuous (and quasicontinuous Sobolev) boundary data f are resolutive, and that the Perron solutions for f and such perturbations coincide. As a consequence, it is also proved that the Perron solution with continuous boundary data is the unique bounded continuous weak solution that takes the required boundary data outside a set of weighted p-capacity zero. Some results in Paper C are a generalisation of those in Paper A, extended to quasilinear elliptic equations of the form div A(x, ∇u) = 0. Here, results from Paper B are used to prove the existence and uniqueness of continuous weak solutions to the mixed boundary value problem for continuous Dirichlet data. Regularity of the boundary point at infinity for the equation div A(x, ∇u) = 0 is characterised by a Wiener type criterion. We show that sets of Sobolev p-capacity zero are removable for the solutions and also discuss the behaviour of the solutions at ∞. In particular, a certain trichotomy is proved, similar to the Phragmén–Lindelöf principle.

Methods for Analysis of Nonlinear Elliptic Boundary Value Problems

Methods for Analysis of Nonlinear Elliptic Boundary Value Problems PDF Author: I. V. Skrypnik
Publisher: American Mathematical Soc.
ISBN: 9780821897560
Category : Mathematics
Languages : en
Pages : 370

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Book Description
The theory of nonlinear elliptic equations is currently one of the most actively developing branches of the theory of partial differential equations. This book investigates boundary value problems for nonlinear elliptic equations of arbitrary order. In addition to monotone operator methods, a broad range of applications of topological methods to nonlinear differential equations is presented: solvability, estimation of the number of solutions, and the branching of solutions of nonlinear equations. Skrypnik establishes, by various procedures, a priori estimates and the regularity of solutions of nonlinear elliptic equations of arbitrary order. Also covered are methods of homogenization of nonlinear elliptic problems in perforated domains. The book is suitable for use in graduate courses in differential equations and nonlinear functional analysis.

Nonlinear Elliptic Boundary Value Problems and Their Applications

Nonlinear Elliptic Boundary Value Problems and Their Applications PDF Author: H Begehr
Publisher: CRC Press
ISBN: 9780582292048
Category : Mathematics
Languages : en
Pages : 282

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Boundary-value Problems with Free Boundaries for Elliptic Systems of Equations

Boundary-value Problems with Free Boundaries for Elliptic Systems of Equations PDF Author: Valentin Nikolaevich Monakhov
Publisher: American Mathematical Soc.
ISBN: 9780821898079
Category : Mathematics
Languages : en
Pages : 540

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Book Description
This book is concerned with certain classes of nonlinear problems for elliptic systems of partial differential equations: boundary-value problems with free boundaries. The first part has to do with the general theory of boundary-value problems for analytic functions and its applications to hydrodynamics. The second presents the theory of quasiconformal mappings, along with the theory of boundary-value problems for elliptic systems of equations and applications of it to problems in the mechanics of continuous media with free boundaries: problems in subsonic gas dynamics, filtration theory, and problems in elastico-plasticity.

Nonlinear Parabolic and Elliptic Equations

Nonlinear Parabolic and Elliptic Equations PDF Author: C.V. Pao
Publisher: Springer Science & Business Media
ISBN: 1461530342
Category : Mathematics
Languages : en
Pages : 786

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Book Description
In response to the growing use of reaction diffusion problems in many fields, this monograph gives a systematic treatment of a class of nonlinear parabolic and elliptic differential equations and their applications these problems. It is an important reference for mathematicians and engineers, as well as a practical text for graduate students.

Boundary Value Problems for Nonlinear Elliptic Equations in High Dimensional Domains

Boundary Value Problems for Nonlinear Elliptic Equations in High Dimensional Domains PDF Author: Guochun Wen
Publisher:
ISBN: 9781900184168
Category : Boundary value problems
Languages : en
Pages : 196

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Boundary Value Problems For Second Order Elliptic Equations

Boundary Value Problems For Second Order Elliptic Equations PDF Author: A.V. Bitsadze
Publisher: Elsevier
ISBN: 0323162266
Category : Mathematics
Languages : en
Pages : 212

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Book Description
Applied Mathematics and Mechanics, Volume 5: Boundary Value Problems: For Second Order Elliptic Equations is a revised and augmented version of a lecture course on non-Fredholm elliptic boundary value problems, delivered at the Novosibirsk State University in the academic year 1964-1965. This seven-chapter text is devoted to a study of the basic linear boundary value problems for linear second order partial differential equations, which satisfy the condition of uniform ellipticity. The opening chapter deals with the fundamental aspects of the linear equations theory in normed linear spaces. This topic is followed by discussions on solutions of elliptic equations and the formulation of Dirichlet problem for a second order elliptic equation. A chapter focuses on the solution equation for the directional derivative problem. Another chapter surveys the formulation of the Poincaré problem for second order elliptic systems in two independent variables. This chapter also examines the theory of one-dimensional singular integral equations that allow the investigation of highly important classes of boundary value problems. The final chapter looks into other classes of multidimensional singular integral equations and related boundary value problems.

Polyharmonic Boundary Value Problems

Polyharmonic Boundary Value Problems PDF Author: Filippo Gazzola
Publisher: Springer
ISBN: 3642122450
Category : Mathematics
Languages : en
Pages : 444

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Book Description
This accessible monograph covers higher order linear and nonlinear elliptic boundary value problems in bounded domains, mainly with the biharmonic or poly-harmonic operator as leading principal part. It provides rapid access to recent results and references.