Abstract. It is shown that every bounded, unital linear mapping that preserves elements of square zero from a C* of real rank zero and without tracial states into a Banach algebra is a Jordan homomorphism.
DOI: 10.14232/actasm-020-067-7
AMS Subject Classification
(1991): 47B48, 46L05, 46L30, 16W10, 17C65
Keyword(s):
C*-algebras,
commutators,
nilpotents,
tracial states,
Jordan homomorphisms,
spectrally bounded operators
received 17.8.2020, revised 25.8.2020, accepted 25.8.2020. (Registered under 817/2020.)
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