Partial Differential Equations Vi - Egorov Yu.V. (Curatore); Shubin M.A. (Curatore) | Libro Springer Berlin Heidelberg 09/1994 - HOEPLI.it


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egorov yu.v. (curatore); shubin m.a. (curatore) - partial differential equations vi

Partial Differential Equations VI Elliptic and Parabolic Operators

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Dettagli

Genere:Libro
Lingua: Inglese
Pubblicazione: 09/1994
Edizione: 1994





Trama

0. 1. The Scope of the Paper. This article is mainly devoted to the oper­ ators indicated in the title. More specifically, we consider elliptic differential and pseudodifferential operators with infinitely smooth symbols on infinitely smooth closed manifolds, i. e. compact manifolds without boundary. We also touch upon some variants of the theory of elliptic operators in !Rn. A separate article (Agranovich 1993) will be devoted to elliptic boundary problems for elliptic partial differential equations and systems. We now list the main topics discussed in the article. First of all, we ex­ pound theorems on Fredholm property of elliptic operators, on smoothness of solutions of elliptic equations, and, in the case of ellipticity with a parame­ ter, on their unique solvability. A parametrix for an elliptic operator A (and A-). . J) is constructed by means of the calculus of pseudodifferential also for operators in !Rn, which is first outlined in a simple case with uniform in x estimates of the symbols. As functional spaces we mainly use Sobolev £ - 2 spaces. We consider functions of elliptic operators and in more detail some simple functions and the properties of their kernels. This forms a foundation to discuss spectral properties of elliptic operators which we try to do in maxi­ mal generality, i. e. , in general, without assuming selfadjointness. This requires presenting some notions and theorems of the theory of nonselfadjoint linear operators in abstract Hilbert space.




Sommario

I. Elliptic Operators on Closed Manifolds.- II. Degenerate Elliptic Equations and Boundary Problems.- III. Parabolic Equations.- Author Index.







Altre Informazioni

ISBN:

9783540546788

Condizione: Nuovo
Collana: Encyclopaedia of Mathematical Sciences
Dimensioni: 235 x 155 mm Ø 1440 gr
Formato: Copertina rigida
Illustration Notes:5 Abbildungen
Pagine Arabe: 325
Pagine Romane: vii
Traduttore: Capinski, M.; Cooke, R.






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