报告主题:Rational slice genus bound and minimal genus problem (有理切面亏格的界与最小亏格问题)
主讲人:杨璟玲助理教授(厦门大学)
主持人:陈冠亨研究员
时间:2023年6月27日周二10:00-11:00
腾讯会议号:330-168-736
报告摘要:
A fundamental problem in low-dimensional topology is to find the minimal genus of embedded surfaces in a 3-manifold or 4-manifold, in a given homology class. Ni and Wu solved a 3-dimensional minimal genus problem for rationally null-homologous knots. In this talk, we will first give a new proof for Ni-Wu's result, then we study an analogous 4-dimensional minimal genus problem for rationally null-homologous knots. This is a joint work with Zhongtao Wu.
嘉宾简介:
杨璟玲教授现为厦门大学数学系助理教授。杨璟玲毕业于香港中文大学,主要从事低维拓扑,纽结理论,Heegaard Floer理论的应用。杨璟玲教授在MATH PROC CAMBRIDGE,J KNOT THEOR RAMIF等国际知名杂志上发表过文章。同时,杨璟玲教授也担任德国《数学文摘》(Zentralblatt MATH)的评论员。