Result: ROOTS OF TOEPLITZ OPERATORS ON THE BERGMAN SPACE

Title:
ROOTS OF TOEPLITZ OPERATORS ON THE BERGMAN SPACE
Source:
Pacific journal of mathematics. 252(1):127-144
Publisher Information:
Berkeley, CA: University of California, Department of Mathematics, 2011.
Publication Year:
2011
Physical Description:
print, 1/4 p
Original Material:
INIST-CNRS
Document Type:
Academic journal Article
File Description:
text
Language:
English
Author Affiliations:
DEPARTMENT OF MATHEMATICS THE UNIVERSITY OF TOLEDO MAIL STOP 942, TOLEDO, OHIO 43606-3390, United States
ISSN:
0030-8730
Rights:
Copyright 2015 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Mathematics
Accession Number:
edscal.24755851
Database:
PASCAL Archive

Further Information

A major goal in the theory of Toeplitz operators on the Bergman space over the unit disk D in the complex plane ℂ is to competely describe the commutant of a given Toeplitz operator, that is, the set of all Toeplitz operators that commute with it. In [2007], the first author characterized the commutant of a Toeplitz operator T that has a quasihomogeneous symbol φ(r)eipθ with p > 0, in case it has a Toeplitz p-th root S with symbol ψ(r)eiθ: The commutant of T is the closure of the linear space generated by powers S that are Toeplitz. But the existence of a p-th root was known until now only when φ(r) = rm with m ≥ 0. Here we will show the existence of p-th roots for a much larger class of symbols, for example, those symbols for which where 0 < ai, bi for all 1 < i < k.