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On Norm Preserving conditions for Local Automorphisms of Commutative Banach Algebras
(JOOUST, 2017)
Most studies on preserver problems have been on linear preserver prob¬lems (LPPs) in matrix theory. It is known that local derivations of Von Neumann algebras are continuous linear maps, which coincide with some derivation ...
Norms and Maximal Numerical Range of Jordan Elementary Operators
(JOOUST, 2017)
Elementary operators originated from the study of the Sylvester and Rosenblum equation AX - X B = Z. Although a lot of work on vari¬ous properties of elementary operators has been done, the norm property still remains an ...