We prove that a bounded operator S on Lap
for p > 1 is compact if
and only if the Berezin transform of S vanishes on the boundary of the unit
disk if S satisfies some integrable conditions. Some estimates about the norm
and essential norm of Toeplitz operators with symbols in BT are obtained.
机构:
Univ Lille Nord France UArtois, Federat CNRS Nord Pas de Calais FR 2956, Lab Math Lens EA 2462, F-62300 Lens, FranceUniv Lille Nord France UArtois, Federat CNRS Nord Pas de Calais FR 2956, Lab Math Lens EA 2462, F-62300 Lens, France
Lefevre, Pascal
Li, Daniel
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Univ Lille Nord France UArtois, Federat CNRS Nord Pas de Calais FR 2956, Lab Math Lens EA 2462, Fac Sci Jean Perrin, F-62300 Lens, FranceUniv Lille Nord France UArtois, Federat CNRS Nord Pas de Calais FR 2956, Lab Math Lens EA 2462, F-62300 Lens, France
Li, Daniel
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Queffelec, Herve
Rodriguez-Piazza, Luis
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Univ Seville, Fac Matemat, Dept Anal Matemat, E-41080 Seville, Spain
Univ Seville, IMUS, E-41080 Seville, SpainUniv Lille Nord France UArtois, Federat CNRS Nord Pas de Calais FR 2956, Lab Math Lens EA 2462, F-62300 Lens, France
Jun YANG Yu Feng LU College of Arts and SciencesShanghai Maritime UniversityShanghai PRChinaSchool of Mathematical SciencesDalian University of TechnologyLiaoning PRChina
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Jun YANG Yu Feng LU College of Arts and SciencesShanghai Maritime UniversityShanghai PRChinaSchool of Mathematical SciencesDalian University of TechnologyLiaoning PRChina