PreprintCC BY-NC-SA 4.0arXiv
Homological aspects of n-trivial extensions of rings
Abstract
Let RltimesnM be the n-trivial extension of a ring R by an R-bimodule M. We first characterize projective, injective, flat and finitely generated modules over RltimesnM. Then we describe when the ring RltimesnM is left perfect (Noetherian, coherent, Artinian, hereditary, Kasch). Finally, we establish some homological formulas of n-trivial extensions of rings.
Related
BibTeX
@misc{mao2026homological,
title = {{Homological aspects of n-trivial extensions of rings}},
author = {Lixin Mao},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.00855},
eprint = {2609.00855},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.00855},
note = {CC BY-NC-SA 4.0},
}
RIS
TY - UNPB
TI - Homological aspects of n-trivial extensions of rings
AU - Lixin Mao
PY - 2026
DA - 2026/09/14
PB - arXiv
DO - 10.48550/arxiv.2609.00855
UR - https://arxiv.org/abs/2609.00855
AB - Let Rltimes_nM be the n-trivial extension of a ring R by an R-bimodule M. We first characterize projective, injective, flat and finitely generated modules over Rltimes_nM. Then we describe when the ring Rltimes_nM is left perfect (Noetherian, coherent, Artinian, hereditary, Kasch). Finally, we establish some homological formulas of n-trivial extensions of rings.
ER -