Invariant measure for critical covering maps of the circle
                    
                  
                  
                  
                  
                  
                    
 
 
   
   主 题: Invariant measure for critical covering maps of the circle
报告人: Prof. Edson Vargas (University of Sao Paulo, Brazil)
时 间: 2017-07-13 16:00-17:00
地 点: 理科1号楼1303 
  
 
  Abstract: We introduce a generalization of the Fibonacci combinatorics for critical covering maps of the circle and, under the additional hypothesis of negative Schwarzi derivative and critical point of order between 1 and 2, we prove that they have an absolutely continuous invariant measure.