THE BEREZIN TRANSFORMATION ON L 2 (U+)


Sworup Kumar Das† , Namita Das‡

Let) be the Bergman space of the upper half plane U+.

In this paper, we consider the integral operator H from L2(U+) into Z

L2(U+) defined by (Hf)(w) = fe(w) =                                f(s)|dw(s)|2dAe(s),w ∈ U+,

U+

where and dAe is the area measure on U+. We refer the map H as the Berezin transformation defined on L2(U+). We have derived various algebraic properties of the operator and showed that considered as an operator on L2a(U+).

Keywords: Bergman space, upper half plane, integral operators, Berezin transformation, reproducing kernel.

MSC: 47B38, 30H20, 45P05.

DOI https://doi.org/10.56082/annalsarscimath.2024.2.162

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†sworup.math@gmail.com, P. G. Department of Mathematics, Utkal University, Vani Vihar, Bhubaneswar-751004, Odisha, India

‡namitadas440@yahoo.co.in, P. G. Department of Mathematics, Utkal University, Vani Vihar, Bhubaneswar-751004, Odisha, India


PUBLISHED in Annals Academy of Romanian Scientists Series on Mathematics and Its Application, Volume 16 no 2, 2024