Toeplitz Operators and Hankel Operators
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Dechao Zheng
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Article
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1997
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Elsevier Science
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English
โ 396 KB
A sufficient condition is found for the product of two Toeplitz operators on the Hardy space of the unit sphere to be a compact perturbation of a Toeplitz operator. The condition leads to a criterion for a Hankel operator to be compact. ## 1997 Academic Press The object of this present paper is to