Products of idempotents in regular rings II
This paper characterizes products of idempotents in (von Neumann) regular rings which are unit-regular or right self-injective. For unit-regular rings, the minimum number of idempotents needed in such a product is determined, thereby generalizing a 1978 result of Ballantine in the case of a matrix with entries from a field.
SubjectsField of Research::01 - Mathematical Sciences::0101 - Pure Mathematics
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