Title of Seminar: Infosys Chandrasekharan Random Geometry Colloquium
Title of Talk: A Decomposition Theorem for Groups Acting on Trees
Speaker: Biswajit Nag, TIFR
Date: January 29, 2024
Time: 16:00:00 Hours
Venue: A-369
Abstract: This talk will introduce Bass-Serre theory, which, given an action of a group on a tree, tells us how to write the group as a sequence of amalgamated free products and HNN extensions of its subgroups. We will go through the relevant notions in the theory, some examples and applications, and if time permits, we will also sketch a proof of the main theorem.
Title of Talk: A Decomposition Theorem for Groups Acting on Trees
Speaker: Biswajit Nag, TIFR
Date: January 29, 2024
Time: 16:00:00 Hours
Venue: A-369
Abstract: This talk will introduce Bass-Serre theory, which, given an action of a group on a tree, tells us how to write the group as a sequence of amalgamated free products and HNN extensions of its subgroups. We will go through the relevant notions in the theory, some examples and applications, and if time permits, we will also sketch a proof of the main theorem.