Rigidity of Ext and Tor via flat–cotorsion theory
LW Christensen, L Ferraro… - Proceedings of the …, 2023 - cambridge.org
Let. This improves a result of Christensen, Iyengar and Marley by lowering the bound on n.
We also improve existing results on Tor-rigidity. This progress is driven by the existence of …
We also improve existing results on Tor-rigidity. This progress is driven by the existence of …
Rigidity of Ext and Tor via flat–cotorsion theory
LW Christensen, L Ferraro… - Proceedings of the …, 2023 - scholarworks.utrgv.edu
Let p be a prime ideal in a commutative noetherian ring R and denote by k (p) the residue
field of the local ring R_p. We prove that if an R-module M satisfies Ext_R^ n (k (p), M)= 0 for …
field of the local ring R_p. We prove that if an R-module M satisfies Ext_R^ n (k (p), M)= 0 for …
Rigidity of Ext and Tor via flat-cotorsion theory
LW Christensen, L Ferraro, P Thompson - arXiv preprint arXiv:2112.00103, 2021 - arxiv.org
Let p be a prime ideal in a commutative noetherian ring R and denote by k (p) the residue
field of the local ring R_p. We prove that if an R-module M satisfies Ext_R^ n (k (p), M)= 0 for …
field of the local ring R_p. We prove that if an R-module M satisfies Ext_R^ n (k (p), M)= 0 for …
Rigidity of Ext and Tor via Flat-Cotorsion Theory
LW Christensen, L Ferraro… - Proceedings of the …, 2023 - diva-portal.org
Let be a prime ideal in a commutative noetherian ring R and denote by the residue field of
the local ring. We prove that if an R-module M satisfies for some, then holds for all. This …
the local ring. We prove that if an R-module M satisfies for some, then holds for all. This …
[PDF][PDF] RIGIDITY OF EXT AND TOR VIA FLAT–COTORSION THEORY
LW CHRISTENSEN, L FERRARO… - arXiv preprint arXiv …, 2021 - researchgate.net
Let p be a prime ideal in a commutative noetherian ring R and denote by k (p) the residue
field of the local ring Rp. We prove that if an R-module M satisfies Extn R (k (p), M)= 0 for …
field of the local ring Rp. We prove that if an R-module M satisfies Extn R (k (p), M)= 0 for …