P. Shankar

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20182022

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math.FA2022

The structure of twisted power partial isometries

Athul Augustine, P. Shankar

Let $n > 1$ and let ${U_{ij}}_{1 \leq i < j \leq n}$ be $(2 n)$ commuting unitaries on a Hilbert space $H$ . Suppose $U_{j i} := U_{ij}^{*}$ , $1 \leq i < j \leq n$ . An n-tuple of…

math.FA2020

Multiplication operators between discrete Hardy spaces on rooted trees

P. Muthukumar, P. Shankar

Muthukumar and Ponnusamy \cite{MP-Tp-spaces} studied the multiplication operators on $T_{p}$ spaces. In this article, we mainly consider multiplication operators between $\m…