On Spectral Theory of Elliptic Operators

On Spectral Theory of Elliptic Operators
Author :
Publisher : Springer Science & Business Media
Total Pages : 194
Release :
ISBN-10 : 3764353902
ISBN-13 : 9783764353902
Rating : 4/5 (902 Downloads)

Book Synopsis On Spectral Theory of Elliptic Operators by : Youri Egorov

Download or read book On Spectral Theory of Elliptic Operators written by Youri Egorov and published by Springer Science & Business Media. This book was released on 1996-07-30 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is well known that a wealth of problems of different nature, applied as well as purely theoretic, can be reduced to the study of elliptic equations and their eigen-values. During the years many books and articles have been published on this topic, considering spectral properties of elliptic differential operators from different points of view. This is one more book on these properties. This book is devoted to the study of some classical problems of the spectral theory of elliptic differential equations. The reader will find hardly any intersections with the books of Shubin [Sh] or Rempel-Schulze [ReSch] or with the works cited there. This book also has no general information in common with the books by Egorov and Shubin [EgShu], which also deal with spectral properties of elliptic operators. There is nothing here on oblique derivative problems; the reader will meet no pseudodifferential operators. The main subject of the book is the estimates of eigenvalues, especially of the first one, and of eigenfunctions of elliptic operators. The considered problems have in common the approach consisting of the application of the variational principle and some a priori estimates, usually in Sobolev spaces. In many cases, impor tant for physics and mechanics, as well as for geometry and analysis, this rather elementary approach allows one to obtain sharp results.

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