Strong generation, approximability theorems, representability and applications

Date & time

3.30–4.30pm 19 September 2017


John Dedman Building 27, Room G35


Amnon Neeman (ANU)


 Arnab Saha

In a 2003 paper Bondal and Van den Bergh proved that, if X is a scheme smooth over a field k, then the category D^b(Coh X) is strongly generated. In 2008 Rouquier developed and expanded this considerably, introducing what is now called the Rouquier dimension of a triangulated category. I will review the known results, discuss applications and explain some recent improvements.

At the end of the talk I would like to discuss a very recent development. Motivated by beautiful work of Jack Hall, I have found a major improvement to another theorem in the 2003 paper by Bondal and Van den Bergh. I will say something about Hall's new proof of GAGA and the direction it has led me.

Updated:  26 September 2017/Responsible Officer:  Director/Page Contact:  School Manager