supported by NNSFC(10071046);PNSFS(981009);PYSFS(20031009);China Postdoctoral Science Foundation
In this paper,we discuss the rank-1-preserving linear maps on nest algebras of Hilbert- space operators.We obtain several characterizations of such linear maps and apply them to show that a weakly continuous linear bi...
supported by NNSFC (10071046);PNSFS (981009);PYSFS(20031009);China Postdoctoral Science Foundation
We show that every unital invertibility preserving linear map from a von Neumann algebra onto a semi-simple Banach algebra is a Jordan homomorphism;this gives an affirmative answer to a problem of Kaplansky for all vo...