Sh:1216
- Golshani, M., & Shelah, S. (2024). Usuba’s principle \mathrm{UB}_\lambda can fail at singular cardinals. J. Symb. Log., 89(1), 195–203. arXiv: 2107.09339 DOI: 10.1017/jsl.2023.61 MR: 4725672
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Abstract:
We answer a question of Usuba by showing that the combinatorial principle UB_\lambda can fail at a singular cardinal. Furthermore, \lambda can be taken to be \aleph_\omega. - Version 2023-09-07 (9p) published version (9p)
Bib entry
@article{Sh:1216,
author = {Golshani, Mohammad and Shelah, Saharon},
title = {{Usuba's principle $\mathrm{UB}_\lambda$ can fail at singular cardinals}},
journal = {J. Symb. Log.},
fjournal = {The Journal of Symbolic Logic},
volume = {89},
number = {1},
year = {2024},
pages = {195--203},
issn = {0022-4812},
mrnumber = {4725672},
mrclass = {03E05 (03E55)},
doi = {10.1017/jsl.2023.61},
note = {\href{https://arxiv.org/abs/2107.09339}{arXiv: 2107.09339}},
arxiv_number = {2107.09339}
}