丹麦技术大学数学学院教授David Brander学术报告 3月6日下午
发布时间: 2019-03-05 访问次数: 13

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.