10-22【金贤安】五教5206 Several results on twuals

发布者:卢珊珊发布时间:2021-10-19浏览次数:239


报告题目: Several results on twuals

报告人:金贤安(厦门大学)

时间:20211022日(周五)下午4:00-5:00

教室:五教5206

摘要:  In this talk, we first review cellularly embedded graphs and their representations as ribbon graphs. Using these representations we explain two concepts: partial dual and twisted dual (briefly, twual) introduced in 2009 and 2012, respectively. Then we focus on partial-dual genus polynomials introduced in 2020 by Gross, Mansour and Tucker, and answer two conjectures they posed. Finally we describe roughly our other works on twuals and related fields. These are joint works with Metsidik Metrose, Qingying Deng, Qi Yan and Xia Guo etc.