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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Cut points in Čech-Stone remainders
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by Alan Dow and Klaas Pieter Hart PDF
Proc. Amer. Math. Soc. 123 (1995), 909-917 Request permission

Abstract:

We investigate cut points of subcontinua of $\beta \mathbb {R}\backslash \mathbb {R}$. We find, under CH, the topologically smallest type of subset of $\mathbb {R}$ that can support such a cut point. On the other hand we answer Question 66 of Hart and van Mill’s Open problems on $\beta \omega$ [Open Problems in Topology (J. van Mill and G. M. Reed, eds.), North-Holland, Amsterdam, 1990, pp. 97-125] by showing that it is consistent that all cut points are trivial (in a sense to be made precise in the paper).
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Additional Information
  • © Copyright 1995 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 123 (1995), 909-917
  • MSC: Primary 54D40; Secondary 03E50, 54A35, 54F15, 54F50
  • DOI: https://doi.org/10.1090/S0002-9939-1995-1216810-5
  • MathSciNet review: 1216810