Abstract:

I-cohomology is a version of the singular cohomology in the real algebraic geometry. It is an important part of the Chow-Witt group, which contains obstruction classes for splitting vector bundles. In this talk, I will introduction the theory of I-cohomology of real algebraic varieties, and discuss how it relates to the singular cohomology in topology. I will also talk about some computations in I-cohomology.

Speaker:

Xie Heng (谢恒), associate professor, Sun Yat-Sen University