Jun 12 – 23, 2022
Europe/Paris timezone

The origin of Hodge theory goes back to many works on elliptic, abelian and multiple integrals. In this lecture series I am going to explain how Lefschetz was puzzled with the computation of Picard rank and this led him to consider the homology classes of curves inside surfaces. This was ultimately formulated in Lefschetz (1,1) theorem and then the Hodge conjecture which is one of the millennium problems of Clay Mathematical Institute. The Hodge theory of hypersurfaces and in particular Fermat varieties is emphasized.

 

Lecture 1:
14 June  Room E. Picard (1R2-129) 10:30.
Title: Lefschetz  puzzle and Picard’s formula
 

Lecture 2:
16 June  Room E. Picard (1R2-129) 13:30
Title:  Lefschetz theorems on the topology of smooth projective varieties and Picard-Lefschetz theory
 

Lecture 3:
30 June  Room J. Cavailles (1R2-132) 13:30.
Title: Toward a computational proof of Lefschetz (1,1) theorem.
 

Lecture 4:
05 July  Room E. Picard (1R2-129) 13:30.
Title: Griffiths theorem on the cohomology of hypersurfaces.
 

Lecture 5:
07 July  Room E. Picard (1R2-129) 13:30
Title: Hodge cycles  for the Fermat variety.

 

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