学术报告（杨南君 9.16）

Chow-Witt group is the quadratic refinement of Chow group which applies to classifications of vector bundles, Hermitian K-theory and refined enumerative geometry.In this talk, we explain the motivic method to compute Chow-Witt groups and how Bockstein SS is naturally involved, including the computation of
fiber bundles and blowups.