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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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Souslin’s hypothesis and convergence in category
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by Arnold W. Miller PDF
Proc. Amer. Math. Soc. 124 (1996), 1529-1532 Request permission

Abstract:

A sequence of functions $f_n\colon X\to \mathbb R$ from a Baire space $X$ to the reals $\mathbb R$ is said to converge in category iff every subsequence has a subsequence which converges on all but a meager set. We show that if there exists a Souslin tree, then there exists a nonatomic Baire space $X$ such that every sequence which converges in category converges everywhere on a comeager set. This answers a question of Wagner and Wilczynski who proved the converse.
References
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Additional Information
  • Arnold W. Miller
  • Affiliation: University of Wisconsin-Madison, Department of Mathematics, Van Vleck Hall, 480 Lincoln Drive, Madison, Wisconsin 53706-1388
  • Email: miller@math.wisc.edu
  • Received by editor(s): November 2, 1994
  • Additional Notes: I want to thank Krzysztof Ciesielski for many helpful conversations
    The results presented in this paper were obtained during the Joint US–Polish Workshop in Real Analysis, Łódź, Poland, July 1994. The workshop was partially supported by the NSF grant INT–9401673
  • Communicated by: Franklin D. Tall
  • © Copyright 1996 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 124 (1996), 1529-1532
  • MSC (1991): Primary 28A20; Secondary 03E65, 54E52
  • DOI: https://doi.org/10.1090/S0002-9939-96-03409-0
  • MathSciNet review: 1328364