1.

Record Nr.

UNINA9910438146003321

Autore

Wang Kelei

Titolo

Free boundary problems and asymptotic behavior of singularly perturbed partial differential equations / / Kelei Wang

Pubbl/distr/stampa

Berlin ; ; Heidelberg, : Springer, c2013

ISBN

1-283-91080-2

3-642-33696-5

Edizione

[1st ed. 2013.]

Descrizione fisica

1 online resource (116 p.)

Collana

Springer theses, , 2190-5053

Disciplina

515.353

Soggetti

Boundary value problems - Asymptotic theory

Differential equations, Partial - Asymptotic theory

Lingua di pubblicazione

Inglese

Formato

Materiale a stampa

Livello bibliografico

Monografia

Note generali

Description based upon print version of record.

Nota di bibliografia

Includes bibliographical references and index.

Nota di contenuto

Foreword -- Acknowledgements -- Introduction -- Uniqueness, Stability and Uniform Lipschitz Estimates -- Uniqueness in the Singular Limit -- The Dynamics of One Dimensional Singular Limiting Problem.- Approximate Clean Up Lemma.- Asymptotics in Strong Competition -- The Limited Equation of a Singular Perturbed System -- Reference -- Index.

Sommario/riassunto

In Bose-Einstein condensates from physics and competing species system from population dynamics, it is observed that different condensates (or species) tend to be separated. This is known as the phase separation phenomena. These pose a new class of free boundary problems of nonlinear partial differential equations. Besides its great difficulty in mathematics, the study of this problem will help us get a better understanding of the phase separation phenomena. This thesis is devoted to the study of the asymptotic behavior of singularly perturbed partial differential equations and some related free boundary problems arising from Bose-Einstein condensation theory and competing species model. We study the free boundary problems in the singular limit and give some characterizations, and use this to study the dynamical behavior of competing species when the competition is strong. These results have many applications in physics and biology.   It was nominated by the Graduate University of Chinese Academy of Sciences as an outstanding PhD thesis.