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Sameer Chavan and
Archana Morye
The eigensheaf of an operator
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Published: |
June 6, 2022. |
Keywords: |
Cowen-Douglas class, Toeplitz operator, holomorphic vector bundle, locally free, cokernel sheaf. |
Subject: |
Primary 47B13, 47B35; Secondary 55Rxx. |
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Abstract
If a bounded linear opertor T on a Hilbert space H lies in the Cowen-Douglas class, then its eigensheaf is locally free, but not conversely. We obtain a model for operators whose eigensheaves are locally free. We describe the
eigensheaves for certain coanalytic Toeplitz operators, we show that the map from an operator to its eigensheaf is a functor from the category of bounded linear operators on Hilbert space to the category of Hilbert space-valued analytic sheaves, and we discuss relation between the eigensheaf of an operator and the sheaf that Putinar associates to an operator.
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Acknowledgements
The work of the second author was supported through UGC SAP (DSA 1).
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Author information
Sameer Chavan:
Department of Mathematics and Statistics
Indian Institute of Technology Kanpur, India
chavan@iitk.ac.in
Archana Morye:
School of Mathematics and Statistics
University of Hyderabad, India
asmsm@uohyd.ac.in
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