Algebraic geometry seminar

Date

Wednesday, 10 April 11.30 am

Venue

Ramanujan Hall

Host

Sudarshan Gurjar

speaker

Nitin Nitsure

Affiliation

Bhaskaracharya Pratishthana, Pune

Title

 Introduction to the Tohoku (1957) paper of Grothendieck-part 1

Abstract

 In 1957, Alexander Grothendieck published a long paper in
two parts in the Tohoku Mathematical Journal, Japan,
whose title can be translated as `On some points of homological
algebra'.  This paper revolutionized the subject of homological
algebra shed unifying light on topics in diverse areas such as group theory, Lie theory, number theory, algebraic topology, etc. It had profound applications to Algebraic Geometry, which were made apparent by Grothendieck and his school in the next few decades. The ideas of abelian categories and additive functors between them, and their derived functors, come from this paper. The famous `Grothendieck spectral sequence' first appeared here. I will give a series of two talks, introducing the ideas of this paper, and also reporting some subsequent developments.
The first talk will assume no prior knowledge except of the basics of groups, rings and modules at an undergraduate level. In it,
I will explain the historical context, and introduce the themes of the paper in simple terms. The second talk will assume some
acquaintance with Algebraic Geometry.