Separable Moduln von Algebren über Ringen.
Singular operations on algebras (generalized contractions)
Some comments on a cubic algebra
Square subgroups of rank two abelian groups
Let G be an abelian group and ◻ G its square subgroup as defined in the introduction. We show that the square subgroup of a non-homogeneous and indecomposable torsion-free group G of rank two is a pure subgroup of G and that G/◻ G is a nil group.
Subalgebras that are Cyclic as Submodules.
Sur les algèbres sur un anneau R munies d'une forme multiplicative de degré n tel que [...]! soit régulier dans R.