Title of Seminar: Algebraic Geometry Preprint Seminar 2022
Title of Talk: Infinite torsion in Griffiths groups
Speaker: A. Sawant
Date: September 13, 2022
Time: 16:00:00 Hours
Venue: AG-77
Abstract: The Griffiths group of degree $i$ of a smooth projective complex variety is the group of homologically trivial codimension $i$ algebraic cycles on it modulo algebraic equivalence. We will outline a new method due to S. Schreieder to detect nontriviality of classes in Griffiths groups, which was used by him to show that there exist smooth projective complex varieties with infinite 2-torsion in their degree 3 Griffiths groups, addressing a question due to C. Schoen. The talk is based on the preprint https://arxiv.org/abs/2011.15047 by S. Schreieder.
Title of Talk: Infinite torsion in Griffiths groups
Speaker: A. Sawant
Date: September 13, 2022
Time: 16:00:00 Hours
Venue: AG-77
Abstract: The Griffiths group of degree $i$ of a smooth projective complex variety is the group of homologically trivial codimension $i$ algebraic cycles on it modulo algebraic equivalence. We will outline a new method due to S. Schreieder to detect nontriviality of classes in Griffiths groups, which was used by him to show that there exist smooth projective complex varieties with infinite 2-torsion in their degree 3 Griffiths groups, addressing a question due to C. Schoen. The talk is based on the preprint https://arxiv.org/abs/2011.15047 by S. Schreieder.