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Indexed by:期刊论文

Date of Publication:2014-01-01

Journal:STUDIA MATHEMATICA

Included Journals:SCIE、Scopus

Volume:220

Issue:3

Page Number:277-292

ISSN No.:0039-3223

Key Words:finite rank; compact perturbation; products; Toeplitz operator; Hankel operator

Abstract:We first determine when the sum of products of Hankel and Toeplitz operators is equal to zero; then we characterize when the product of a Toeplitz operator and a Hankel operator is a compact perturbation of a Hankel operator or a Toeplitz operator and when it is a finite rank perturbation of a Toeplitz operator.