A note on the spectral area of Toeplitz operators
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- by Cheng Chu and Dmitry Khavinson PDF
- Proc. Amer. Math. Soc. 144 (2016), 2533-2537 Request permission
Abstract:
In this note, we show that for hyponormal Toeplitz operators, there exists a lower bound for the area of the spectrum. This extends the known estimate for the spectral area of Toeplitz operators with an analytic symbol.References
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Additional Information
- Cheng Chu
- Affiliation: Department of Mathematics, Washington University in Saint Louis, Saint Louis, Missouri
- Email: chengchu@math.wustl.edu
- Dmitry Khavinson
- Affiliation: Department of Mathematics, University of South Florida, Tampa, Florida
- MR Author ID: 101045
- Email: dkhavins@usf.edu
- Received by editor(s): March 23, 2015
- Received by editor(s) in revised form: July 13, 2015
- Published electronically: October 20, 2015
- Communicated by: Pamela Gorkin
- © Copyright 2015 American Mathematical Society
- Journal: Proc. Amer. Math. Soc. 144 (2016), 2533-2537
- MSC (2010): Primary 30J99, 47B35
- DOI: https://doi.org/10.1090/proc/12900
- MathSciNet review: 3477069