Incomparable families and maximal trees
Fundamenta Mathematicae, Tome 234 (2016) no. 1, pp. 73-89
Cet article a éte moissonné depuis la source Institute of Mathematics Polish Academy of Sciences
We answer several questions of D. Monk by showing that every maximal family of pairwise incomparable elements of $\mathcal P(\omega )/\mathit {fin}$ has size continuum, while it is consistent with the negation of the Continuum Hypothesis that there are maximal subtrees of both $\mathcal P(\omega )$ and $\mathcal P(\omega )/\mathit {fin}$ of size $\omega _1$.
Keywords:
answer several questions monk showing every maximal family pairwise incomparable elements mathcal omega mathit fin has size continuum while consistent negation continuum hypothesis there maximal subtrees mathcal omega mathcal omega mathit fin size omega
Affiliations des auteurs :
G. Campero-Arena 1 ; J. Cancino 2 ; M. Hrušák 3 ; F. E. Miranda-Perea 1
@article{10_4064_fm125_1_2016,
author = {G. Campero-Arena and J. Cancino and M. Hru\v{s}\'ak and F. E. Miranda-Perea},
title = {Incomparable families and maximal trees},
journal = {Fundamenta Mathematicae},
pages = {73--89},
year = {2016},
volume = {234},
number = {1},
doi = {10.4064/fm125-1-2016},
language = {en},
url = {http://geodesic.mathdoc.fr/articles/10.4064/fm125-1-2016/}
}
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G. Campero-Arena; J. Cancino; M. Hrušák; F. E. Miranda-Perea. Incomparable families and maximal trees. Fundamenta Mathematicae, Tome 234 (2016) no. 1, pp. 73-89. doi: 10.4064/fm125-1-2016
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