On a class of nonlocal elliptic operators for compact Lie groups. Uniformization and finiteness theorem
type: Item
instance of: scholarly article
title: On a class of nonlocal elliptic operators for compact Lie groups. Uniformization and finiteness theorem
zbMATH Open document ID: 1241.58012
author: Boris Sternin
published in: Central European Journal of Mathematics
publication date: 2012-01-16T00:00:00Z
review text: The author studies \(G\)-pseudodifferential operators of the form \[ P= \int_G P_g T_g dg, \] where \(P_g\) is a smooth family of classical pseudodifferential operators on a compact manifold \(M\), depending on the parameter \(g\in G\), with \(G\) a compact Lie group of diffeomorphisms acting on \(M\), and \(dg\) is the Haar measure on \(G\). If \(G\) is a discrete group, then the integral defining \(P\) reduces to a finite sum; the corresponding \(G\)-pseudodifferential operators were already studied by many authors, see for example \textit{A. Connes} [Noncommutative geometry. Transl. from the French by Sterling Berberian. San Diego, CA: Academic Press. xiii, 661 p. (1994; Zbl 0818.46076)]. Here the author studies the general case. In particular, the symbol of \(P\) is defined as an element of the crossed product of the algebra of the classical symbols on \(S^*M\) and the group \(G\). Invertibility of such symbol implies the Fredholm property for \(P\).
reviewed by: Luigi Rodino
Mathematics Subject Classification ID: 58J40
Mathematics Subject Classification ID: 35S05
zbMATH DE Number: 5997966
zbMATH Keywords: \(G\)-pseudodifferential operators
zbMATH Keywords: transversal ellipticity
zbMATH Keywords: pseudodifferential uniformization
zbMATH Keywords: Lie groups
zbMATH Keywords: finiteness theorem
Wikidata QID: Q115227861
MaRDI profile type: Publication
full work available at URL: s11533-011-0045-8
OpenAlex ID: W2046094059
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DOI: 10.2478/S11533-011-0045-8
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description: scientific article; zbMATH DE number 5997966