报告题目【Spherical surfaces and harmonic maps: singularities and bifurcations】
时间：2019年3月6日 (星期三) 下午15:00
地点：旗山校区理工北楼601报告厅
主讲：丹麦技术大学数学学院教授 David Brander
主办：数学与信息学院, 福建省分析数学及应用重点实验室, 数学研究中心
参加对象：相关方向的教师和学生
专家简介：David Brander 丹麦技术大学数学学院教授。
报告摘要：Surfaces with constant positive Gaussian curvature -- also known as spherical surfaces -- are closely related to harmonic maps into the 2-sphere via the Gauss map. There are no complete regular spherical surfaces other than the round sphere: however the harmonic map construction, or, alternatively the construction as parallel surfaces to constant mean curvature surfaces, gives naturally defined global spherical surfaces which have some singularities. It's a natural question in singularity theory to classify the generic singularities and their bifurcations. In this talk I will discuss how to construct the generic singularities and bifurcations using loop group methods.
