Isometries of the Disc Algebra

Mohamad El-Gebeily, John Wolfe
1985 Proceedings of the American Mathematical Society  
The linear isometries u: A -> A of the disc algebra A into itself are completely described. Such isometries u must be one of two distinct types.
doi:10.2307/2045547 fatcat:bboevzwicnfgrinenvpctshama