Topology Seminar——Studies of distance one surgeries on lens space L(p,1) and band surgeries on torus knot T(2,p)
报告人：Jingling Yang (The Chinese University of Hong Kong)
地点：Room 1303, Sciences Building No. 1
Abstract: It has been well known that any closed, orientable 3-manifold can be obtained by Dehn surgery on a link in S3. One of the most prominent problems in 3-manifold topology is to list all the possible lens spaces that can be obtained by a Dehn surgery along a knot in S3, which has been solved by Greene. A natural generalization of this problem is to list all the possible lens spaces that can be obtained by a Dehn surgery from other lens spaces. Besides, considering surgeries between lens spaces is also motivated from DNA topology. In this talk, we will discuss distance one surgeries between lens spaces L(p,1) with p≥5 prime and lens spaces L(n,1) for n∈Z, correspondingly band surgeries from T(2,p) to T(2,n), by using Heegaard Floer d-invariant. This is a joint work with Zhongtao Wu.