Amitsur's theorem, semicentral idempotents, and additively idempotent semirings
Martin Rachev,
Ivan Trendafilov
Abstract:The article explores research findings akin to Amitsur’s theorem, asserting that any derivation within a matrix ring can be expressed as the sum of an inner derivation and a hereditary derivation. In most results related to rings and semirings, Birkenmeier’s semicentral idempotents play a crucial role. This article is intended for PhD students, postdocs, and researchers.
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