Abstract
Let X be a Banach space and be the algebra of all bounded linear operators on X. Firstly, we prove that every derivable mapping at a nonzero element in
is a derivation. As a corollary, we show that every generalized derivable mapping on
is a general derivation. Secondly, we prove that every centralizable mapping on
is a centralizer.
Acknowledgments
We thank the referees for their time and comments. We thank Maxine Garcia, PhD, from Liwen Bianji (Edanz) (www.liwenbianji.cn/) for editing the English text of a draft of this manuscript.
Disclosure statement
No potential conflict of interest was reported by the authors.