Augmentations and sheaves for knot conormals
发布时间:2018年08月13日
浏览次数:6623
发布者: Li Yang
主讲人: Honghao Gao (Institut Fourier)
活动时间: 从 2018-08-15 15:00 到 16:00
场地: 北京国际数学研究中心,全斋全9教室
Knot invariants can be defined using Legendrian isotopy invariants of the knot conormal. There are two types of invariants raised in this way: one is the knot contact differential graded algebra together with augmentations associated to this dga, and the other one is the category of simple sheaves microsupported along the knot conormal. Nadler-Zaslow correspondence suggests a connection between the two types of invariants. In this talk, I will manifest this correspondence, explicitly at the level of objects.