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20172026
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math.FA2026

Möb Homogeneous Analytic Hilbert Modules over the Bidisc

Jyotirmay Das, Somnath Hazra

An analytic Hilbert module over the polynomial ring, consisting of holomorphic functions over the bidisc, is said to be Möb-homogeneous if the corresponding pair of m…

math.FA2026

Complete Nevanlinna-Pick property of -Invariant Reproducing Kernels

Miroslav Engliš, Somnath Hazra, Paramita Pramanick

Let be a Cartan domain and be a -invariant kernel on . In this article, we first obtain a necessary cond…

math.FA2025

Homogeneous analytic Hilbert modules -- the case of non-transitive action

Shibananda Biswas, Prahllad Deb, Somnath Hazra +2

This work investigates analytic Hilbert modules , over the polynomial ring, consisting of holomorphic functions on a -space that are homogen…

math.FA2024

Representations of the Möbius group and pairs of homogeneous operators in the Cowen-Douglas class

Jyotirmay Das, Somnath Hazra

Let Möb be the biholomorphic automorphism group of the unit disc of the complex plane, be a complex separable Hilbert space and be the grou…

math.FA2022

On analytic structure of weighted shifts on generalized directed semi-trees

Gargi Ghosh, Somnath Hazra

Inspired by natural classes of examples, we define generalized directed semi-tree and construct weighted shifts on the generalized directed semi-trees. Given an -tuple of direct…

math.FA2019

A product formula for homogeneous characteristic functions

Bhaskar Bagchi, Somnath Hazra, Gadadhar Misra

A bounded linear operator on a Hilbert space is said to be homogeneous if is unitarily equivalent to for all in the group Möb of bi-holomorphic automorphisms of…