Characterizing homomorphisms, derivations and multipliers in rings with idempotents
Matej BrešarDepartment of Mathematics, PEF, University of Maribor, Koroška 160, 2000 Maribor, Slovenia
2007en
ABI
Abstract
In certain rings containing non-central idempotents we characterize homomorphisms, derivations, and multipliers by their actions on elements satisfying some special conditions. For example, we consider the condition that an additive map into itself is a derivation.
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