Speaker: Vamsi Pingali (Department of Mathematics, IISc.)

Time, Day and Date: 11:30 a.m., Tuesday, May 14

Venue: Ramanujan Hall (2nd floor, Department of Mathematics)

Title: Gravitating vortices and cosmic strings

Abstract: The gravitating vortex (GV) equations on a compact Riemann surface arise as a dimensional reduction of the Kaehler-Yang-Mills equations. A special case of the GV equations includes the equations governing the (as of now, hypothetical) cosmic strings. I shall describe existence, uniqueness, and algebro-geometric obstructions to existence to these equations. This talk is based on joint work with M. Garcia-Fernandez, L. Alvarez-Consul, O. Garcia-Prada, and Chengjian Yao.

Algebraic Groups Seminar

Tuesday, May 14, 2024, 4 pm
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Venue: Ramanujan Hall

Host: Shripad M. Garge

Speaker: Saad

Affiliation: IIT Bombay, Mumbai

Title: Semi-simple groups of rank one

Abstract: We prove that a connected, semi-simple group of rank one is
isomorphic to SL(2) or PSL(2).

PhD Defense of Brahadeesh Sankarnarayanan
Title - Some Problems in Combinatorics: Excursions in Graph Colorings and
Extremal Set Theory
Date - 16 May, Thursday
Time - 1130 AM
Venue - Ramanujan Hall
Weblink - https://meet.google.com/wvq-uobf-zib

Special Mathematics Colloquium
Speaker: Prof. R. Parimala
Title: `A Hasse principle for projective homogeneous spaces’
Date and time : Friday 17 May 2024 11:30 to 12:30 hrs
Venue : Ramanujan Hall

Algebraic Groups seminar (Host: Dipendra Prasad)

Friday at 4 pm in room # 105.

Deep Makadia  will speak  on what is called  the ``Borel-Siebenthal" theory,
which determines all maximal subgroups of maximal rank of a reductive
group, following a paper of P. Gille.