Results 131 to 140 of about 252 (156)
Some of the next articles are maybe not open access.
2000
There are two equivalence relations on torsion-free abelian groups that are weaker than group isomorphism, namely quasi-isomorphism and isomorphism at a prime p. Properties of these equivalence relations are conveniently expressed in a categorical setting.
openaire +1 more source
There are two equivalence relations on torsion-free abelian groups that are weaker than group isomorphism, namely quasi-isomorphism and isomorphism at a prime p. Properties of these equivalence relations are conveniently expressed in a categorical setting.
openaire +1 more source
Superposition for divisible torsion-free abelian groups
1998Variable overlaps are one of the main sources for the inefficiency of AC or ACU theorem proving calculi. In the presence of the axioms of abelian groups or at least cancellative abelian monoids, ordering restrictions allow us to avoid some of these overlaps, but inferences with unshielded variables remain necessary.
openaire +1 more source
On a Class of Torsion-Free Abelian Groups
Proceedings of the London Mathematical Society, 1970openaire +2 more sources
The abelian groups with torsion-free endomorphism ring
Publicationes Mathematicae Debrecen, 2022openaire +2 more sources
Countable Torsion-Free Abelian Groups
Proceedings of the London Mathematical Society, 1960openaire +2 more sources
Algorithms in Direct Decompositions of Torsion-Free Abelian Groups
Journal of Mathematical Sciences, 2023E A Blagoveshchenskaya
exaly
On direct decompositions of torsion free abelian groups
Publicationes Mathematicae Debrecen, 2022openaire +1 more source
The isomorphism problem for torsion-free Abelian groups is analytic complete
Journal of Algebra, 2008Antonio Montalbán
exaly