Sibaprasad Barik

activity

20172026

most citedCommutant lifting in several variables

1 citations · 1 across the 6 of their papers we have counts for

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math.FA2026

Doubly commuting invariant and co-invariant subspaces

Sibaprasad Barik, Shubham Jain, Samir Panja

Given complex separable Hilbert spaces $H_{i}$ and bounded operators $T_{i}$ on $H_{i}$ , for $i = 1, \dots, n$ , we consider the tensor product space $\mathfrak{H}:=\math…

math.FA2026

Noncommutative commutant lifting, interpolation, and shift-invariant subspaces

Sibaprasad Barik, Samir Panja

We establish a Sarason-type commutant lifting theorem in the framework of noncommutative Drury-Arveson space and apply it to solve the noncommutative Nevanlinna-Pick interpolation…