The automorphism group of an unbounded domain related to Wermer type sets

The purpose of this paper is to determine the automorphism group of a certain unbounded strongly pseudoconvex domain in C2C2 which is pertinent to Wermer type sets. We show that the automorphism group of this domain is S1×S1S1×S1. In ascertaining the automorphism group, we shall adopt the Bergman representative mapping.