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The Ext functor and self-sums
-
Ulrich Albrecht
,
Simion Breaz
Published/Copyright:
February 21, 2012
Abstract.
The aim of this paper is to investigate the relationship
between the Abelian groups G with
Keywords: Functors on Abelian groups; extensions; self-sums; torsion-free Abelian groups; splitters; cotorsion
groups; S-groups
Funding source: Romanian National Authority for Scientific Research, CNCS–UEFISCDI
Award Identifier / Grant number: PN-II-RU-TE-2011-3-0065
Received: 2011-11-23
Revised: 2012-1-23
Published Online: 2012-2-21
Published in Print: 2014-5-1
© 2014 by Walter de Gruyter Berlin/Boston
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Articles in the same Issue
- Frontmatter
- Smooth global solutions for the two-dimensional Euler Poisson system
- Primitive ideals in quantum Schubert cells: Dimension of the strata
- Group valued null sequences and metrizable non-Mackey groups
- The splitting relation for Fréchet spaces over non-archimedean fields
- Bloch–Kato pro-p groups and locally powerful groups
- On Lp resolvent estimates for Laplace–Beltrami operators on compact manifolds
- The Ext functor and self-sums
- Auslander–Reiten translations in monomorphism categories
- An elementary proof of the vanishing of the second cohomology of the Witt and Virasoro algebra with values in the adjoint module
- Unitals over composition algebras
- Separation of bi-harmonic differential operators on Riemannian manifolds
Keywords for this article
Functors on Abelian groups;
extensions;
self-sums;
torsion-free Abelian groups;
splitters;
cotorsion
groups;
S-groups
Articles in the same Issue
- Frontmatter
- Smooth global solutions for the two-dimensional Euler Poisson system
- Primitive ideals in quantum Schubert cells: Dimension of the strata
- Group valued null sequences and metrizable non-Mackey groups
- The splitting relation for Fréchet spaces over non-archimedean fields
- Bloch–Kato pro-p groups and locally powerful groups
- On Lp resolvent estimates for Laplace–Beltrami operators on compact manifolds
- The Ext functor and self-sums
- Auslander–Reiten translations in monomorphism categories
- An elementary proof of the vanishing of the second cohomology of the Witt and Virasoro algebra with values in the adjoint module
- Unitals over composition algebras
- Separation of bi-harmonic differential operators on Riemannian manifolds
