Non circularity of the numerical range of finite order elliptic automorphism composition operators
Description
In this talk we consider the following conjecture, posed in 2000 by P. Bourdon and J. Shapiro: "The numerical range of a finite order elliptic automorphism composition operator is not a disc", and we give a positive answer to this conjecture.
Non circularity of the numerical range of finite order elliptic automorphism composition operators
Cupples I Room 207
In this talk we consider the following conjecture, posed in 2000 by P. Bourdon and J. Shapiro: "The numerical range of a finite order elliptic automorphism composition operator is not a disc", and we give a positive answer to this conjecture.