\\"CHARACTERIZATION OF HIGHER DERIVATIONS ON ALGEBRAS\\"

Let A be an algebra. A sequence d_n of linear mappings on A is called a higher derivation if d_n(ab)=\\\\sum_{k=1}^n d_k(a)d_{n-k}(b). In this paper we give ...

Suppose that $\\\\\\\\sigma:\\\\\\\\calm\\\\\\\\to\\\\\\\\calm$ is an ultraweakly continuous

surjective $*$-linear mapping and $d:\\\\\\\\calm\\\\\\\\to\\\\\\\\calm$ is an

ultraweakly continuous $*$-$\\\\\\ ...