Morse-Novikov cohomology of almost nonnegatively curved

发布时间：2019-11-20 作者：浏览次数：

Speaker:	陈小杨	DateTime:	2019年11月23日 (周六)上午9：30到10：30
Brief Introduction to Speaker: 陈小杨，研究员，同济大学。		Place:	6号楼二楼报告厅
Abstract:Let M be a closed manifold of almost nonnegative sectional curvature and nonzero first de Rham cohomology group. Using a topological argument, we show that the Morse-Novikov cohomology group vanishes for any p. Based on a new integral formula, we also show that a similar result holds for a closed manifold of almost nonnegative Ricci curvature under the additional assumption that its curvature operator is uniformly bounded from below.