The aim of this note is to characterize 2-local automorphisms and derivations on matrix rings over finite-dimensional division rings.

We describe surjective linear maps preserving commutativity from (symmetric elements of) any algebra (with involution) onto (symmetric elements of) a prime algebra (with involution) not satisfying polynomial identities of low degree. Bijective commutativity preservers on skew elements of centrally closed prime algebras with involution of the first kind are also investigated.

No abstract

No abstract