Sh:980
- Shelah, S. (2023). Nice \aleph_1 generated non-P-points, Part I. MLQ Math. Log. Q., 69(1), 117–129. arXiv: 1112.0819 DOI: 10.1002/malq.202200070 MR: 4606452
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Abstract:
We define a family of a (non-principal) ultrafilter on {\mathbb N}, i.e. a point which are very far from P-points. We first under reasonable conditions, prove its existence. In a continuation we shall prove that such a point may exist while no P-point exists. - Version 2023-05-04_3 (22p) published version (13p)
Bib entry
@article{Sh:980,
author = {Shelah, Saharon},
title = {{Nice $\aleph_1$ generated non-P-points, Part I}},
journal = {MLQ Math. Log. Q.},
fjournal = {MLQ. Mathematical Logic Quarterly},
volume = {69},
number = {1},
year = {2023},
pages = {117--129},
issn = {0942-5616},
mrnumber = {4606452},
mrclass = {03E05 (03E35)},
doi = {10.1002/malq.202200070},
note = {\href{https://arxiv.org/abs/1112.0819}{arXiv: 1112.0819}},
arxiv_number = {1112.0819}
}