# Sh:766

• Fuchs, L., & Shelah, S. (2003). On a non-vanishing Ext. Rend. Sem. Mat. Univ. Padova, 109, 235–239.
• 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.
Bib entry
@article{Sh:766,
author = {Fuchs, L{\'a}szl{\'o} and Shelah, Saharon},
title = {{On a non-vanishing Ext}},
journal = {Rend. Sem. Mat. Univ. Padova},
fjournal = {Rendiconti del Seminario Matematico della Universit\a di Padova. The Mathematical Journal of the University of Padova},
volume = {109},
year = {2003},
pages = {235--239},
issn = {0041-8994},
mrnumber = {1997989},
mrclass = {13D07 (03C60 03E75)},
note = {\href{https://arxiv.org/abs/math/0405015}{arXiv: math/0405015}},
arxiv_number = {math/0405015}
}`