S. Sundar

activity

20232026

collaborators

4 papers

math.GT2026

$PGL_{2}$ webs at roots of unity

Vijay Higgins, Bryan Silva, Amy Somers +3

We study webs on surfaces for the $PGL_{2}$ skein theory specialized at roots of unity. We construct the $PGL_{2}$ analogue of Chebyshev polynomials and use them to construct…

math.OA2025

Doubly Commuting Semigroups of Isometries

C. H. Namitha, S. Sundar, Shankar Veerabathiran

In this paper, we discuss the structure of doubly commuting semigroups of isometries. We record a new proof of Cooper's theorem in the Hilbert module setting. We discuss the Fell t…

math.OA2025

Notes on $C^{*}$ -algebras

S. Sundar

These lecture notes on $C^{*}$ -algebras were prepared for a couple of courses given by the author at IMSc and also at IIT Gandhinagar. The topics covered are: Gelfand-Naimark theor…

math.OA2023

On Multiparameter CAR Flows

C. H. Namitha, S. Sundar

Let $P$ be a pointed, closed convex cone in $R^{d}$ . We prove that for two pure isometric representations $V^{(1)}$ and $V^{(2)}$ of $P$ , the associated CAR flows $β^{V^{(1)…

PGL2​ webs at roots of unity

Doubly Commuting Semigroups of Isometries

Notes on C∗-algebras

On Multiparameter CAR Flows

$PGL_{2}$ webs at roots of unity

Notes on $C^{*}$ -algebras