|Hermann Weyl Lectures|
|Topic:||Chow Rings, Decomposition of the Diagonal and the Topology of Families|
|Affiliation:||CNRS, Institut de Mathematiques de Jussieu, Paris|
|Date:||Tuesday, November 1|
|Time/Room:||2:00pm - 3:00pm/S-101|
Summary: These lectures are devoted to the interplay between cohomology and Chow groups of a complex algebraic variety, and also to the consequences, on the topology of a family of smooth projective varieties, of statements concerning Chow groups of the general fiber. A crucial notion is that of coniveau of the cohomology and its conjectural relation with the shape of Chow groups of small dimension. A common theme will be that of decomposition of the diagonal, which will appear in various contexts.