## Speaker:

Guoyi Xu

## Institution:

Tsinghua University

## Time:

Tuesday, March 9, 2021 - 4:00pm

## Location:

Zoom

For a geodesic ball with non-negative Ricci curvature and almost

maximal volume, we give the existence proof of splitting map without

compactness argument. There are two technical new points, the first one is

the way of finding n-directional points by induction and stratified Gou-Gu

Theorem, the second one is the error estimates of projections. The content

of the talk is technical, but we will explain the basic geometric intuition

behind the technical proof. This is a joint work with Jie Zhou.