Algebraic Geometry Seminar - Tuesday 29 October 2019, at 16:00, SISSA (Andrea Ricolfi)

[ICTP Math Section]

ALGEBRAIC GEOMETRY SEMINAR

PLEASE NOTE, Change of date and venue:

the seminar will take place on Tuesday 29th October, at 16:00, Room 
A-134 (SISSA).


Speaker: Andrea Ricolfi (SISSA)


Title: Refinements in Donaldson-Thomas theory


Abstract: Donaldson-Thomas invariants are integers (virtually) counting 
sheaves on complex 3-folds. The local structure of the moduli space of 
sheaves on a Calabi-Yau 3-fold leaves room for various refinements of 
these integer counts. After introducing some of them, we will give an 
example (joint work with B. Davison) of a motivic refinement in DT 
theory: a motivic lift of the DT/PT correspondence, proved in the 
unrefined case by Bridgeland and Toda.

http://users.ictp.it/~arincon/AGS.html

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