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Ahmadi Gandomani, M. H.; Mehdipour, M. J.
Aequationes mathematicae, 04/2018, Volume: 92, Issue: 2Journal Article
Let G be a locally compact abelian group, ω be a weighted function on R + , and let D be the Banach algebra L 0 ∞ ( G ) ∗ or L 0 ∞ ( ω ) ∗ . In this paper, we investigate generalized derivations on the noncommutative Banach algebra D . We characterize k -(skew) centralizing generalized derivations of D and show that the zero map is the only k -skew commuting generalized derivation of D . We also investigate the Singer–Wermer conjecture for generalized derivations of D and prove that the Singer–Wermer conjecture holds for a generalized derivation of D if and only if it is a derivation; or equivalently, it is nilpotent. Finally, we investigate the orthogonality of generalized derivations of L 0 ∞ ( ω ) ∗ and give several necessary and sufficient conditions for orthogonal generalized derivations of L 0 ∞ ( ω ) ∗ .
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