Displaying similar documents to “On products of singular elements”

An inverse matrix of an upper triangular matrix can be lower triangular

Waldemar Hołubowski (2002)

Discussiones Mathematicae - General Algebra and Applications

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In this note we explain why the group of n×n upper triangular matrices is defined usually over commutative ring while the full general linear group is defined over any associative ring.

On non singular p-inyective rings.

Yasuyuki Hirano (1994)

Publicacions Matemàtiques

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A ring R is said to be if, for any principal left ideal I of R, any left R-homomorphism I into R extends to one of R into itself. In this note left nonsingular left p-injective rings are characterized using their maximal left rings of quotients and the structure of semiprime left p-injective rings of bounded index is investigated.

On filial rings

Andrusziewicz, R., Puczylowski, E.R. (1988)

Portugaliae mathematica

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