Pre-synopsis seminar

Tuesday, November 28, 10:00 am

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Venue:  https://meet.google.com/mrn-wpbn-hnh

Host: Prachi Mahajan

Speaker: Rahul Kumar
Title:  The Bergman-Friedman invariant on some classes of pseudo-convex domains

Combinatorics and TCS seminar

Tuesday, 28th Nov 2023, 11 am

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Venue: Ramanujan Hall

Host: S. Sivaramakrishnan

Speaker: Haritha Cheriyath, TIFR-CAM
Title: ENUMERATION OF SUBWORDS ON SEQUENCES AND ITS APPLICATIONS
 

Abstract: We start with an enumeration problem studied by Guibas and Odlyzko in 1979 and its applications in seemingly unrelated scenarios that include game theory, pattern matching algorithm, graph theory, and symbolic dynamics. One of the main objects of our study is a subshift of finite type, which is used as a tool to model a large class of dynamical systems. It consists of a collection of all one-sided sequences over a finite symbol set which contains none of a given finite collection of words. We discuss its correspondence with an edge labeled multigraph and hence with its associated adjacency matrix. We see how some (topological as well as measure-theoretic) properties of a subshift of finite type are studied using this correspondence and solve a generalized version of the enumeration problem.

Algebraic Groups seminar

Tuesday, 28 November 2023, 4 pm

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Venue: Ramanujan Hall

Host: Shripad Garge

Speaker: Chayan Karmakar

Affiliation: IIT Bombay

Title: Differentials & Smooth Points - IV
Abstract: We study the notion of Lie algebra of a linear algebraic group