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Idempotente voortbringers van matriksalgebras
(Stellenbosch : University of Stellenbosch, 2007-12)
An exposition is given of , a paper by N. Krupnik, which is a discussion of the minimum number of idempotent generators of a complete matrix algebra Mn(F) over a field F, as well as direct sums of complete matrix ...
Contributions to centralizers in matrix rings
(Stellenbosch : University of Stellenbosch, 2010-12)
ENGLISH ABSTRACT: THE concept of a k-matrix in the full 2 2 matrix ring M2(R=hki), where R is an arbitrary unique factorization domain (UFD) and k is an arbitrary nonzero nonunit in R, is introduced. We obtain a concrete ...