# Sh:1189

• Poór, M., & Shelah, S. (2021). Characterizing the spectra of cardinalities of branches of Kurepa trees. Pacific J. Math., 311(2), 423–453.
• Abstract:
We give a complete characterization of the sets of cardinals that in a suitable forcing extension can be the Kurepa spectrum, that is, the set of cardinalities of branches of Kurepa trees. This answers a question of the first named author.
• Version 2021-08-03_2 (36p) published version (34p)
Bib entry
@article{Sh:1189,
author = {Po{\'o}r, M{\'a}rk and Shelah, Saharon},
title = {{Characterizing the spectra of cardinalities of branches of Kurepa trees}},
journal = {Pacific J. Math.},
fjournal = {Pacific Journal of Mathematics},
volume = {311},
number = {2},
year = {2021},
pages = {423--453},
issn = {0030-8730},
mrnumber = {4292936},
mrclass = {03E35 (03E05 03E45)},
doi = {10.2140/pjm.2021.311.423},
note = {\href{https://arxiv.org/abs/2003.01272}{arXiv: 2003.01272}},
arxiv_number = {2003.01272}
}