When is there a discontinuous homomorphism from L¹(G)?
Volume 110 / 1994
Studia Mathematica 110 (1994), 97-104
DOI: 10.4064/sm-110-1-97-104
Abstract
Let A be an A*-algebra with enveloping C*-algebra C*(A). We show that, under certain conditions, a homomorphism from C*(A) into a Banach algebra is continuous if and only if its restriction to A is continuous. We apply this result to the question in the title.
