Abstract
We answer a question raised by Nordgren and Rosenthal about the Schatten-von Neumann class membership of operators in standard reproducing kernel Hilbert spaces in terms of their Berezin symbols.
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References
J. H. Anderson and J. G. Stampfli, Commutators and compressions, Israel J. Math., 10 (1971), 433–441.
P. R. Ahern and D. N. Clark, Radial limits and invariant subspaces, Amer. J. Math., 92 (1970), 332–342.
J. Dixmier, Étude sur les variétés et les opérateurs de Julia, avec quelques applications, Bull. Soc. Math. France, 77 (1949), 11–101.
P. A. Fillmore, J. G. Stampfli and J. P. Williams, On the essential numerical range, the essential spectrum, and a problem of Halmos, Acta Sci. Math. (Szeged), 33 (1972), 179–192.
E. Fricain and J. Mashreghi, Boundary behavior of functions in the de Branges-Rovnyak spaces, Complex Anal. Oper. Theory, 2 (2008), 87–97.
I. C. Gohberg and M. G. Krein, Introduction to the theory of linear nonselfadjoint operators, Translated from the Russian by A. Feinstein, Translations of Mathematical Monographs, 18, Amer. Math. Soc., Providence, 1969.
M. T. Karaev, Use of reproducing kernels and Berezin symbols technique in some questions of operator theory, Forum Math., DOI: 10.1515/FORM.2099.000 (to appear).
E. Nordgren and P. Rosenthal, Boundary values of Berezin symbols, Nonselfadjoint operators and related topics (Beer Sheva, 1992), Oper. Theory Adv. Appl. 73, Birkhäuser, Basel, 1994, 362–368.
D. Sarason, Sub-Hardy Hilbert spaces in the unit disk, University of Arkansas Lecture Notes in the Mathematical Sciences 10, John Wiley & Sons Inc., New York, 1994.
K. Zhu, Operator theory in function spaces, second edition, Mathematical Surveys and Monographs 138, Amer. Math. Soc., Providence, RI, 2007.
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The authors wish to thank the referee for valuable comments.
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This work was supported by the PHC Bosphore 2010-2012.
Communicated by L. Kérchy
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Chalendar, I., Fricain, E., Gürdal, M. et al. Compactness and Berezin symbols. ActaSci.Math. 78, 315–329 (2012). https://doi.org/10.1007/BF03651352
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DOI: https://doi.org/10.1007/BF03651352
Key words and phrases
- Berezin symbols
- compact operators
- Schatten-von Neumann classes
- reproducing kernel Hilbert space
- model spaces