数学科学研究所
Insitute of Mathematical Science

Seminar:Isotopy problems of Lagrangian spheres in algebraic surfaces

Seminar| Institute of Mathematical Sciences

Time: Friday, January 10th, 2025,13:30-14:30

LocationIMS, RS408

Speaker:Siyang Liu, University of Southern California


Abstract:Given two homologuous Lagrangian spheres in a given algebraic surface, under what conditions are they smoothly isotopic? Borman-Li-Wu gave an answer for rational surfaces, where all homologuous Lagrangian spheres are smoothly isotopic. Based on their result and some tools from Hodge theory, we show that certain type of homologuous Lagrangian spheres in some non-rational surfaces are also smoothly isotopic. This is a joint work in preparation with Yilong Zhang.


地址:上海市浦东新区华夏中路393号
邮编:201210
上海市徐汇区岳阳路319号8号楼
200031(岳阳路校区)