Surfaces in three-dimensional Lie groups
                    
                  
                  
                  
                  
                  
                    
 
 
   
   主 题: Surfaces in three-dimensional Lie groups
报告人: Prof. I. Taimanov (俄罗斯科学院院士)
时 间: 2007-11-16 下午 2:00 - 3:00
地 点: 理科一号楼 1114(数学所活动) 
  
 
  We expose some recent results in the surface theory in 
three-dimensional Lie groups obtained by methods of the spinor (or 
Weierstrass representation). In particular, by using the spectral 
theory of the corresponding Dirac operator we derive a generalization of 
the Willmore functional, study some of its properties and related 
variational problems and discuss its conjectural relation to the 
isoperimetric problem.