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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
Higher-order spectral shift for pairs of contractions via multiplicative path
Arup Chattopadhyay, Chandan Pradhan
In \cite{Mor}, Marcantognini and Morán obtained Koplienko-Neidhardt trace formula for pairs of contractions and pairs of maximal dissipative operators via multiplicative path. In t…
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…