UNIVERSITY OF PENNSYLVANIA

Department of Mathematics

Fall 2011 - Hans Rademacher Lectures in Mathematics

Claire Voisin

Institute of Mathematics de Jussieu
University of Paris VI: Pierre and Marie Curie

will speak on

Chow rings, decomposition of the diagonal and the topology of families

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.


Introduction to Chow groups and coniveau
Monday....October 3, 2011....4:30pm....A6 DRL


On the generalized Bloch and Hodge conjectures for complete intersections
Tuesday....October 4, 2011....4:30pm....A6 DRL


Decomposition of the small diagonal and the topology of families
Wednesday....October 5, 2011....4:30pm....A6 DRL


Integral coefficients; application to birational invariants
Thursday....October 6, 2011....4:30pm....4C8 DRL

Lectures will be held in the David Rittenhouse Laboratory (DRL),
S.E. corner of 33rd and Walnut Streets, Philadelphia, PA.

Tea: 4E17 DRL at 4:00pm.


For further information, please call the Department of Mathematics at the University of Pennsylvania - 215-898-8627.

List of Previous Rademacher Lecturers