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A Characterization of Compact SG Pseudo-differential Operatorson L2(ℝn)

Published online by Cambridge University Press:  17 July 2014

S. Molahajloo
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Abstract

We give a necessary and sufficient condition for pseudo-differential operators with SGsymbols to be compact from L2(ℝn)into L2(ℝn).

Keywords

SG pseudo–differential operatorscompact operatorsCalkin algebraFredholmnessessential spectra

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Type
Research Article
Information
Mathematical Modelling of Natural Phenomena , Volume 9 , Issue 5: Spectral problems , 2014 , pp. 239 - 243
Copyright
© EDP Sciences, 2014

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