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
Products of Hankel and Toeplitz Operators on the Bergman Space
โ Scribed by Karel Stroethoff; Dechao Zheng
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 245 KB
- Volume
- 169
- Category
- Article
- ISSN
- 0022-1236
No coin nor oath required. For personal study only.
โฆ Synopsis
We consider the question for which square integrable analytic functions f and g on the unit disk the densely defined products T f T gร are bounded on the Bergman space. We prove results analogous to those obtained by the second author [17] for such Toeplitz products on the Hardy space. We furthermore obtain similar results for Hankel products H f H g * , where f and g are square integrable on the unit disk, and for the mixed Haplitz products H f T gร and T g H f * , where f and g are square integrable on the unit disk and g is analytic.
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