English

Strongly J-clean matrices over 2-projective-free rings

Rings and Algebras 2014-10-29 v2

Abstract

An element aa in a ring RR is strongly J-clean if it is the sum of an idempotent and an element in the Jacobson radical that commutes. We characterize the strongly J-clean 2×22\times 2 matrices over 2-projective-free non-commutative rings.

Keywords

Cite

@article{arxiv.1409.3974,
  title  = {Strongly J-clean matrices over 2-projective-free rings},
  author = {Marjan Sheibani Abdolyousefi and Hunyin Chen and Rahman Bahmani Sangesari},
  journal= {arXiv preprint arXiv:1409.3974},
  year   = {2014}
}
R2 v1 2026-06-22T05:56:00.852Z