TURKISH JOURNAL OF MATHEMATICS, vol.43, no.4, pp.1940-1952, 2019 (Journal Indexed in SCI)
Article / Article
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TURKISH JOURNAL OF MATHEMATICS
In this paper, we prove reverse inequalities for the so-called Berezin number of some operators. Also, by using the classical Jensen and Young inequalities, we obtain upper bounds for Berezin number of A(alpha) X B-alpha and A(alpha) X B1-alpha for the case when 0 <= alpha <= 1.