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20072009
most citedCentralizers in endomorphism rings

2 citations · 2 across the 3 of their papers we have counts for

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math.RA2009★ 2 cited

Centralizers in endomorphism rings

Vesselin Drensky, Jeno Szigeti, Leon van Wyk

We prove that the centralizer Cen(f) in Hom_R(M,M) of a nilpotent endomorphism f of a finitely generated semisimple left R-module M (over an arbitrary ring R) is the homomorphic im…

math.RA2008

The centralizer of an element in an endomorphism ring

Jeno Szigeti, Leon van Wyk

We have results about the centralizer.

math.RA2007

Subrings which are closed with respect to taking the inverse

Jeno Szigeti, Leon van Wyk

Let S be a subring of the ring R. We investigate the question of whether S intersected by U(R) is equal to U(S) holds for the units. In many situations our answer is positive. Ther…