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Chow groups
Organizers: R. Abugaliev, R. Déev, B. Zavyalov
Syllabus:
- Chow group: definition and basic properties (Fulton's 1st ch.)
- Intersection theory
- Examples: projective bundles, blow-ups, hypersurfaces of small degree
- Hodge decomposition
- Abel–Jacobi map
- Cohomological interpretation of Chow groups
- Rojtman's theorems A and B
- Bloch–Srinivas' construction
- Mumford's theorem
- Griffiths' group
- Bloch's conjecture and its proofs in partial cases
- Bloch–Beĭlinson conjecture and its corollaries
- Hypothetical filtrations
- Murre's and Saito's filtrations
- Case of abelian varieties
- Case of hyperkähler varieties (?)
Past talks:
- Febraury 8, Renat A. Introductory talk
- February 15, Renat A. Definition of Chow groups and their properties [Fu, Ch. 1]
- February 22, Rodion D. Basics of Hodge theory [Vo1]
- February 29, Renat A. Abel–Jacobi map and Intermediate Jacobian varieties [Vo1, 12.1]
- March 7, Renat A. Finite dimensionality of Chow groups [Vo2, 10.1] and [Vo3]
- March 14, Sasha Petrov. Mumford's theorem [Bl1, Appendix to Ch. 1]
- March 21, Bogdan Z. Cohomological interpretation of Chow groups [Bl1, Ch. 4]
- March 28, Bogdan Z. Rojtman's theorem on torsion [Bl1, Ch. 5]
- April 11, Renat A. Chow groups of blow-ups, projective bundles and hypersurfaces of small degree
- April 18, Renat A. Bloch's conjecture.
- April 25, Renat A. Bloch–Beĭlinson conjecture
- May 9, Bogdan Z. Griffiths' groups of abelian varieties
- May 16, Sasha Kuznetsova. Decomposition for Chow groups of abelian varieties (1st talk)
- May 23, Sasha K. Decomposition for Chow groups of abelian varieties (2nd talk)
- May 30, Renat A. Chow groups of 0-cycles on K3 surfaces
- June 6, Sasha P. Esnault's theorem
- June 15, Bogdan Z. Pontryagin multiplication on the group of 0-cycles on abelian variety
Literature:
- [Bl1] S. Bloch, Lectures on algebraic cycles
- [Fu] W. Fulton, Intersection theory
- [Vo1] C. Voisin, Théorie de Hodge et géométrie algébrique I
- [Vo2] C. Voisin, Théorie de Hodge et géométrie algébrique II
- [Vo3] C. Voisin, Symplectic involutions of K3 surfaces act trivially on CH_0