Some remarks on derivations in Banach algebras and related results.
Symmetric bi-derivations on prime and semi-prime rings.
Two results concerning symmetric bi-derivations on prime rings.
P-Universally bounded unitary operators and the structure of locally convex vector spaces
On some additive mappings in rings with involution.
On a certain identitiy satisfied by a derivation and an arbitrary additive mapping. (Summary).
On a certain identity satisfied by a derivation and an arbitrary additive mapping.
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