Narayan Rakshit

activity

20162024

most citedTube algebra of group-type subfactors

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

collaborators

8 papers

math.FA2024

Contractive representations of odometer semigroup

Anindya Ghatak, Narayan Rakshit, Jaydeb Sarkar +1

Given a natural number $n \geq 1$ , the odometer semigroup $O_{n}$ , also known as the adding machine or the Baumslag-Solitar monoid with two generators, is a well-known object in grou…

math.FA2022

Orthogonal decompositions and twisted isometries II

Narayan Rakshit, Jaydeb Sarkar, Mansi Suryawanshi

We classify tuples of (not necessarily commuting) isometries that admit von Neumann-Wold decomposition. We introduce the notion of twisted isometries for tuples of isometries and p…

math.OA2021

Poisson boundary on full Fock space

B. V. Rajarama Bhat, Panchugopal Bikram, Sandipan De +1

This article is devoted to studying the non-commutative Poisson boundary associated with $(B (F (H)), P_{ω})$ where $H$ is a separable Hil…

math.OA2021

Orthogonal decompositions and twisted isometries

Narayan Rakshit, Jaydeb Sarkar, Mansi Suryawanshi

Let $n > 1$ . Let ${U_{ij}}_{1 \leq i < j \leq n}$ be $(2 n)$ commuting unitaries on some Hilbert space $H$ , and suppose $U_{j i} := U_{ij}^{*}$ , $1 \leq i < j \leq…

math.FA2020

Orthogonality in Banach Spaces via projective tensor product

Kousik Dhara, Narayan Rakshit, Jaydeb Sarkar +1

Let $X$ be a complex Banach space and $x, y \in X$ . By definition, we say that $x$ is Birkhoff-James orthogonal to $y$ if $∥ x + λ y ∥_{X} \geq ∥ x ∥_{X}$ for all $λ \in C$ . We…

math.OA2020

A caricature of dilation theory

B V Rajarama Bhat, Sandipan De, Narayan Rakshit

We present a set-theoretic version of some basic dilation results of operator theory. The results we have considered are Wold decomposition, Halmos dilation, Sz. Nagy dilation, int…

math.QA2018

Tube representations and twisting of graded categories

Jyotishman Bhowmick, Shamindra Ghosh, Narayan Rakshit +1

We study deformation of tube algebra under twisting of graded monoidal categories. When a tensor category $C$ is graded over a group $Γ$ , a torus-valued 3-cocycle on $Γ$ …

math.OA2016★ 1 cited

Tube algebra of group-type subfactors

Dietmar Bisch, Paramita Das, Shamindra Kumar Ghosh +1

We describe the tube algebra and its representations in the cases of diagonal and Bisch-Haagerup subfactors possibly with a scalar 3-cocycle obstruction. We show that these categor…