Algebras of holomorphic functions with Hadamard multiplication
Tom 118 / 1996
Studia Mathematica 118 (1996), 77-100 DOI: 10.4064/sm-118-1-77-100
A systematic investigation of algebras of holomorphic functions endowed with the Hadamard product is given. For example we show that the set of all non-invertible elements is dense and that each multiplicative functional is continuous, answering some questions in the literature.