2008 | OriginalPaper | Buchkapitel
Commuting Toeplitz Operators and Hyperbolic Geometry
Erschienen in: Commutative Algebras of Toeplitz Operators on the Bergman Space
Verlag: Birkhäuser Basel
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The
C
*
-algebras of Toeplitz operators considered in Chapters 5, 6, and 7 are commutative. This property is impossible (except for the trivial case of scalar operators ≡ constant defining symbols) for the
C
*
-algebras of Toeplitz operators acting on the Hardy space. The special features of the defining symbols which make this phenomenon possible were
symbols depending only on the imaginary part of a variable
for Toeplitz operators on the upper half-plane,
radial symbols
for Toeplitz operators on the unit disk, and
symbols depending only on the angular part of a variable
for Toeplitz operators on the upper half-plane, respectively. In this stage a natural question appears:
whether there exist other classes of defining symbols which generate commutative Toeplitz operator C
*
-
algebras, and how they can be classfied
.