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math.FA2021
Commutants and Complex Symmetry of Finite Blaschke Product Multiplication Operator in $\bm{L^2(\T)}$
Arup Chattopadhyay, Soma Das
Consider the multiplication operator in $L^2(\T)$, where the symbol is a finite Blaschke product. In this article, we characterize the commutant of in $L^2(\T)$…
math.FA2021
Characterization of C-Symmetric Toeplitz operators for a Class of Conjugations in Hardy Spaces
Arup Chattopadhyay, Soma Das, Chandan Pradhan +1
In this article, we introduce a new class of conjugations in the scalar valued Hardy space and provide a characterization of a complex symmetric Toep…
math.FA2021★ 3 cited
Second order trace formulae
Arup Chattopadhyay, Soma Das, Chandan Pradhan
Koplienko \cite{Ko} found a trace formula for perturbations of self-adjoint operators by operators of Hilbert-Schmidt class . Later, Neidhardt introduce…