English

Classification of split torsion torsionfree triples in module categories

Rings and Algebras 2007-05-23 v1 Representation Theory

Abstract

A TTF-triple (C,T,F)(\mathcal{C},\mathcal{T},\mathcal{F}) in an abelian category is called 'one-sided split' in case either (C,T)(\mathcal{C},\mathcal{T}) or (T,F)(\mathcal{T},\mathcal{F}) is a split torsion theory. In this paper we classify one-sided split TTF-triples in module categories, thus completing Jans' classification of two-sided split TTF-triples and answering a question that has remained open for almost forty years.

Cite

@article{arxiv.math/0511159,
  title  = {Classification of split torsion torsionfree triples in module categories},
  author = {Pedro Nicolas and Manuel Saorin},
  journal= {arXiv preprint arXiv:math/0511159},
  year   = {2007}
}

Comments

14 pages

R2 v1 2026-07-22T17:27:00.380Z