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Topological Methods in the Study of Boundary Value Problems

Topological Methods in the Study of Boundary Value Problems
Author: Pablo Amster
Publisher: Springer
Total Pages: 244
Release: 2013-11-30
Genre:
ISBN: 9781461488941

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This graduate-level textbook presents representative problems in nonlinear analysis by topological methods. The approach is elementary with simple model equations and applications, allowing students to focus on the application of topological methods.


Topological Methods in the Study of Boundary Value Problems

Topological Methods in the Study of Boundary Value Problems
Author: Pablo Amster
Publisher: Springer Science & Business Media
Total Pages: 238
Release: 2013-10-23
Genre: Mathematics
ISBN: 1461488931

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This textbook is devoted to the study of some simple but representative nonlinear boundary value problems by topological methods. The approach is elementary, with only a few model ordinary differential equations and applications, chosen in such a way that the student may avoid most of the technical difficulties and focus on the application of topological methods. Only basic knowledge of general analysis is needed, making the book understandable to non-specialists. The main topics in the study of boundary value problems are present in this text, so readers with some experience in functional analysis or differential equations may also find some elements that complement and enrich their tools for solving nonlinear problems. In comparison with other texts in the field, this one has the advantage of a concise and informal style, thus allowing graduate and undergraduate students to enjoy some of the beauties of this interesting branch of mathematics. Exercises and examples are included throughout the book, providing motivation for the reader.


Topological and Variational Methods with Applications to Nonlinear Boundary Value Problems

Topological and Variational Methods with Applications to Nonlinear Boundary Value Problems
Author: Dumitru Motreanu
Publisher: Springer Science & Business Media
Total Pages: 465
Release: 2013-11-19
Genre: Mathematics
ISBN: 1461493234

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This book focuses on nonlinear boundary value problems and the aspects of nonlinear analysis which are necessary to their study. The authors first give a comprehensive introduction to the many different classical methods from nonlinear analysis, variational principles, and Morse theory. They then provide a rigorous and detailed treatment of the relevant areas of nonlinear analysis with new applications to nonlinear boundary value problems for both ordinary and partial differential equations. Recent results on the existence and multiplicity of critical points for both smooth and nonsmooth functional, developments on the degree theory of monotone type operators, nonlinear maximum and comparison principles for p-Laplacian type operators, and new developments on nonlinear Neumann problems involving non-homogeneous differential operators appear for the first time in book form. The presentation is systematic, and an extensive bibliography and a remarks section at the end of each chapter highlight the text. This work will serve as an invaluable reference for researchers working in nonlinear analysis and partial differential equations as well as a useful tool for all those interested in the topics presented.


Topological Methods in Differential Equations and Inclusions

Topological Methods in Differential Equations and Inclusions
Author: Andrzej Granas
Publisher: Springer Science & Business Media
Total Pages: 531
Release: 2012-12-06
Genre: Mathematics
ISBN: 9401103399

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The papers collected in this volume are contributions to the 33rd session of the Seminaire de Mathematiques Superieures (SMS) on "Topological Methods in Differential Equations and Inclusions". This session of the SMS took place at the Universite de Montreal in July 1994 and was a NATO Advanced Study Institute (ASI). The aim of the ASI was to bring together a considerable group of young researchers from various parts of the world and to present to them coherent surveys of some of the most recent advances in this area of Nonlinear Analysis. During the meeting 89 mathematicians from 20 countries have had the opportunity to get acquainted with various aspects of the subjects treated in the lectures as well as the chance to exchange ideas and learn about new problems arising in the field. The main topics teated in this ASI were the following: Fixed point theory for single- and multi-valued mappings including topological degree and its generalizations, and topological transversality theory; existence and multiplicity results for ordinary differential equations and inclusions; bifurcation and stability problems; ordinary differential equations in Banach spaces; second order differential equations on manifolds; the topological structure of the solution set of differential inclusions; effects of delay perturbations on dynamics of retarded delay differential equations; dynamics of reaction diffusion equations; non smooth critical point theory and applications to boundary value problems for quasilinear elliptic equations.


Topological Degree Methods in Nonlinear Boundary Value Problems

Topological Degree Methods in Nonlinear Boundary Value Problems
Author: J. Mawhin
Publisher: American Mathematical Soc.
Total Pages: 130
Release: 1979
Genre: Mathematics
ISBN: 082181690X

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Contains lectures from the CBMS Regional Conference held at Harvey Mudd College, June 1977. This monograph consists of applications to nonlinear differential equations of the author's coincidental degree. It includes an bibliography covering many aspects of the modern theory of nonlinear differential equations and the theory of nonlinear analysis.


Positive Solutions to Indefinite Problems

Positive Solutions to Indefinite Problems
Author: Guglielmo Feltrin
Publisher: Springer
Total Pages: 304
Release: 2018-11-23
Genre: Mathematics
ISBN: 3319942387

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This book is devoted to the study of positive solutions to indefinite problems. The monograph intelligibly provides an extensive overview of topological methods and introduces new ideas and results. Sticking to the one-dimensional setting, the author shows that compelling and substantial research can be obtained and presented in a penetrable way. In particular, the book focuses on second order nonlinear differential equations. It analyzes the Dirichlet, Neumann and periodic boundary value problems associated with the equation and provides existence, nonexistence and multiplicity results for positive solutions. The author proposes a new approach based on topological degree theory that allows him to answer some open questions and solve a conjecture about the dependence of the number of positive solutions on the nodal behaviour of the nonlinear term of the equation. The new technique developed in the book gives, as a byproduct, infinitely many subharmonic solutions and globally defined positive solutions with chaotic behaviour. Furthermore, some future directions for research, open questions and interesting, unexplored topics of investigation are proposed.


Initial and Boundary Value Problems Via Topological Methods

Initial and Boundary Value Problems Via Topological Methods
Author: Daniel J. O'Regan
Publisher:
Total Pages: 202
Release: 1985
Genre: Topology
ISBN:

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In this thesis a relatively new topological technique, due to A. Granas, called Topological Transversality is used to obtain existence theorems for initial and boundary value problems in a variety of settings. This fixed point result is based on the notions of an essential map and on a priori bounds on solutions.