학술논문

The Coburn Lemma and the Hartman–Wintner–Simonenko Theorem for Toeplitz Operators on Abstract Hardy Spaces
Document Type
Original Paper
Source
Integral Equations and Operator Theory. 95(1)
Subject
Banach function space
Toeplitz operator
Coburn’s lemma
Normal solvability
Fredholmness
Invertibility
Primary 47B35
46E30
Language
English
ISSN
0378-620X
1420-8989
Abstract
Let X be a Banach function space on the unit circle TX′H[X′]X′a∈L∞\{0}X′T(a)f=P(af)T(a¯)g=P(a¯g)H[X′]Hp1