Chennai Mathematical Institute

Seminars




Mathematics Seminar
Date: Wednesday, 23 October 2024
Time: 3:30 PM
Venue: Seminar Hall
Rationality of Seshadri Constants on Blow ups of Hirzebruch Surfaces

Cyril Jacob
Chennai Mathematical Institute.
23-10-24


Abstract

The SHGH conjecture is a well-known conjecture concerning linear systems of curves in the projective plane. In 2002, A. Laface extended this conjecture to the setting of Hirzebruch surfaces. In this talk, we will explore certain implications of these conjectures and exhibit irrational Seshadri constants assuming one of these conjectures. This is a joint work with Krishna Hanumanthu, Suhas B. N. and Amit Kumar Singh.