Sudip Ranjan Bhuia

activity

20222026

collaborators

8 papers

math.FA2026

Nearly invariant subspaces and weighted dual truncated Toeplitz operators

Sudip Ranjan Bhuia

Let $M = h K_{u}$ be a nearly $S^{*}$ -invariant subspace of $H^{2}$ , where $K_{u} = H^{2} ⊖ u H^{2}$ and $h$ is the extremal multiplier. For $\vp\in L^\infty(\T)$,…

math.FA2026

Algebraic characterizations of paired operators on model spaces

Sudip Ranjan Bhuia, Satyabrata Majee

We study paired multiplication operators associated with orthogonal decompositions of $L^{2} (T)$ arising from Hardy spaces and Sz.-Nagy--Foias model spaces. For a non-consta…

math.FA2026

On the minimum modulus of dual truncated Toeplitz operators

Sudip Ranjan Bhuia, Ramesh Golla, Puspendu Nag

This article provides a systematic investigation of the minimum modulus of dual truncated Toeplitz operators (DTTOs) $D_{φ}$ acting on the orthogonal complement of the model space $\…

math.FA2026

Norm attaining dual truncated Toeplitz operators

Sudip Ranjan Bhuia, Puspendu Nag

In this paper, we investigate norm attainment for dual truncated Toeplitz operators $D_\vp$ acting on $\clk_u^\perp=uH^2\oplus H^2_{-}$, where $u$ is a nonconstant inner function a…

math.FA2024

Factorization of anti-linear and $C$ -normal operators

Sudip Ranjan Bhuia

A conjugation $C$ is an anti-linear isometric involution on a complex Hilbert space $\clh$, and $T\in \clb(\clh)$ is conjugate normal if $T^{*} T = C T T^{*} C$ holds for some conjugation…

math.FA2024

Norm attaining composition operators on Segal-Bargmann spaces

Neeru Bala, Sudip Ranjan Bhuia

In this note, we study the composition operators on Segal-Bargmann spaces, which attains its norm and we show that every composition operators on the classical Fock space over $\ma…

math.FA2023

Operators commuting with complex symmetric weighted composition operators on $H^{2}$

Sudip Ranjan Bhuia

In this paper, we initially study when an anti-linear Toeplitz operator is in the commutant of a composition operator. Primarily, we investigate weighted composition operators $W_{…

math.FA2022

Characterizations of complex symmetric Toeplitz operators

Sudip Ranjan Bhuia, Deepak Pradhan, Jaydeb Sarkar

We present complete characterizations of Toeplitz operators that are complex symmetric. This follows as a by-product of characterizations of conjugations on Hilbert spaces. Notably…

Nearly invariant subspaces and weighted dual truncated Toeplitz operators

Algebraic characterizations of paired operators on model spaces

On the minimum modulus of dual truncated Toeplitz operators

Norm attaining dual truncated Toeplitz operators

Factorization of anti-linear and C-normal operators

Norm attaining composition operators on Segal-Bargmann spaces

Operators commuting with complex symmetric weighted composition operators on H2

Characterizations of complex symmetric Toeplitz operators

Factorization of anti-linear and $C$ -normal operators

Operators commuting with complex symmetric weighted composition operators on $H^{2}$