On a non-vanishing Ext
Logic
2007-05-23 v1 Group Theory
Rings and Algebras
Abstract
The existence of valuation domains admitting non-standard uniserial modules for which certain Exts do not vanish was proved under Jensen's Diamond Principle. In this note, the same is verified using the ZFC axioms alone.
Cite
@article{arxiv.math/0405015,
title = {On a non-vanishing Ext},
author = {Laszlo Fuchs and Saharon Shelah},
journal= {arXiv preprint arXiv:math/0405015},
year = {2007}
}