中科院数学与系统科学研究院

数学研究所

代数几何研讨班

N913  7月12日

13:30—14:30

Relative cohomology and A-hypergeometric equations

张鼎新（Brandais)

Solutions of some A-hypergeometric equations contain period integrals of some hypersurfaces in toric varieties. Huang--Lian--Yau--Zhu showed that when then toric variety is smooth, solutions of A-hypergeometric equations can be characterized in terms of relative cohomology groups. Joint with Tsung-Ju Lee, we explain how to generalize their result to possibly singular toric varieties.

14：45—15：45

Motives for an elliptic curve

曹晋 (Tsinghua)

In this talk, we will give a description of motives of an elliptic curve in the sense of Voevodsky via commutative differential algebras.

16：00—17：00

General Motivic Cohomology

杨南君 （Grenoble)