Classification of torsion free abelian minimax groups
Cobalanced exact sequences
Computation of the mapping of factorization by the radical for of the endomorphism ring.
Concerning almost divisible torsion free abelian groups
Das Gewicht einer Butlergruppe.
Decompositions of local rigid ACD groups
We study direct decompositions of extensions of rigid completely decomposable groups by finite primary groups. These decompositions are unique and can be found by finite procedures. By passing to certain quotients the determination of the direct decompositions is made more efficient.
Der Torsionstyp nilpotenter Gruppen
Direct decompositions of uniform groups
Uniform groups are extensions of rigid completely decomposable groups by a finite direct sum of cyclic primary groups all of the same order. The direct decompositions of uniform groups are completely determined by an algorithm that is realised by a MAPLE procedure.
Discretely normed Abelian groups.
Endomorphism representations of Zorn rings and subclasses of rings with enough idempotents.
Factor-splitting Abelian groups of arbitrary rank
Factor-splitting Abelian groups of finite rank
Factor-splitting length of torsionfree abelian groups of rank two
Finite Groups of Exponent 12 as Automorphism Groups.
Generalized Cotorsion Locally Compact abelian Groups
Groupes -réduits
Homomorphisms between -projective Abelian groups and left Kasch-rings
Glaz and Wickless introduced the class of mixed abelian groups which have finite torsion-free rank and satisfy the following three properties: i) is finite for all primes , ii) is isomorphic to a pure subgroup of , and iii) is torsion. A ring is a left Kasch ring if every proper right ideal of has a non-zero left annihilator. We characterize the elements of such that is a left Kasch ring, and discuss related results.
Indecomposable (1,3)-groups and a matrix problem
Almost completely decomposable groups with a critical typeset of type and a -primary regulator quotient are studied. It is shown that there are, depending on the exponent of the regulator quotient , either no indecomposables if ; only six near isomorphism types of indecomposables if ; and indecomposables of arbitrary large rank if .
Intersections of Primary Powers of a Group.
Isomorphisms of Cayley graphs of a free Abelian group.