Spectral Theory of Differential Operators
Self-Adjoint Differential Operators
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Beschreibung
In this fully-illustrated textbook, the author examines the spectral theory of self-adjoint elliptic operators. Chapters focus on the problems of convergence and summability of spectral decompositions about the fundamental functions of elliptic operators of the second order. The author's work offers a novel method for estimation of the remainder term of a spectral function and its Riesz means without recourse to the traditional Carleman technique and Tauberian theorem apparatus.
Autor*in
V.A. Il'in
Themen in »Spectral Theory of Differential Operators«
calculus differential operator function proof spectral theory theorem variable ordinary differential equations