The Gleason-Kahane-Żelazko theorem and its generalizations
Volume 30 / 1994
Banach Center Publications 30 (1994), 327-331
DOI: 10.4064/-30-1-327-331
Abstract
This expository article deals with results surrounding the following question: Which pairs of Banach algebras A and B have the property that every unital invertibility preserving linear map from A to B is a Jordan homomorphism?