Necessary and sufficient condition for compactness of the embedding operator

2005/09/19 by A. G. Ramm, Ramm, A. G.
Mathematics · #46B50 #46E30 #47B07 #FOS: Mathematics #Functional Analysis (math.FA) #math.FA #msc:46B50 #msc:46E30 #msc:47B07

paper · pdf · doi:10.48550/arxiv.math/0509435

arxiv created 2005/09/19 · arxiv updated 2009/12/01

Abstract

An improvement of the author's result, proved in 1961, concerning necessary and sufficient conditions for the compactness of an imbedding operator is given.

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