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math.RA2013
Simple Semigroup Graded Rings
Patrik Nystedt, Johan Öinert
We show that if is a, not necessarily unital, ring graded by a semigroup equipped with an idempotent such that is cancellative at , the non-zero elements of $eGe…
math.RA2013★ 8 cited
Simple Rings and Degree Maps
Patrik Nystedt, Johan Öinert
For an extension A/B of neither necessarily associative nor necessarily unital rings, we investigate the connection between simplicity of A with a property that we call A-simplicit…