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SOME REFINEMENTS OF BEREZIN NUMBER INEQUALITIES VIA CONVEX FUNCTIONS

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dc.creator SALTAN, Suna
dc.creator Baskan, Nazli
dc.date 2023-01-01T00:00:00Z
dc.date.accessioned 2025-02-25T10:35:34Z
dc.date.available 2025-02-25T10:35:34Z
dc.identifier a53194f4-eae8-4d17-a8d1-c64ca7fca791
dc.identifier 10.31801/cfsuasmas.1089790
dc.identifier https://avesis.sdu.edu.tr/publication/details/a53194f4-eae8-4d17-a8d1-c64ca7fca791/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/100837
dc.description The Berezin transform (A) over tilde and the Berezin number of an operator A on the reproducing kernel Hilbert space over some set Omega with normalized reproducing kernel (k) over cap (lambda) are defined, respectively, by (A) over tilde(lambda) = < A((k) over cap (lambda), (k) over cap (lambda)>, lambda is an element of Omega and ber(A) := sup(lambda is an element of Omega) |($) over tilde(lambda)|. A straightforward comparison between these characteristics yields the inequalities ber (A) <= 1/2 (||A||(ber) + ||A2||(1/2)(ber)). In this paper, we study further inequalities relating them. Namely, we obtained some refinements of Berezin number inequalities involving convex functions. In particular, for A is an element of B (H) and r >= 1 we show that
dc.language eng
dc.rights info:eu-repo/semantics/openAccess
dc.title SOME REFINEMENTS OF BEREZIN NUMBER INEQUALITIES VIA CONVEX FUNCTIONS
dc.type info:eu-repo/semantics/article


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