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Journal of the American Mathematical Society

Published by the American Mathematical Society, the Journal of the American Mathematical Society (JAMS) is devoted to research articles of the highest quality in all areas of mathematics.

ISSN 1088-6834 (online) ISSN 0894-0347 (print)

The 2024 MCQ for Journal of the American Mathematical Society is 4.83.

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Heegaard surfaces and measured laminations, II: Non-Haken 3–manifolds
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by Tao Li;
J. Amer. Math. Soc. 19 (2006), 625-657
DOI: https://doi.org/10.1090/S0894-0347-06-00520-0
Published electronically: February 3, 2006

Abstract:

A famous example of Casson and Gordon shows that a Haken 3–manifold can have an infinite family of irreducible Heegaard splittings with different genera. In this paper, we prove that a closed non-Haken 3–manifold has only finitely many irreducible Heegaard splittings, up to isotopy. This is much stronger than the generalized Waldhausen conjecture. Another immediate corollary is that for any irreducible non-Haken 3–manifold $M$, there is a number $N$ such that any two Heegaard splittings of $M$ are equivalent after at most $N$ stabilizations.
References
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Bibliographic Information
  • Tao Li
  • Affiliation: Department of Mathematics, Boston College, Chestnut Hill, Massachusetts, 02167-3806
  • Email: taoli@bc.edu
  • Received by editor(s): November 24, 2004
  • Published electronically: February 3, 2006
  • Additional Notes: Partially supported by NSF grants DMS-0102316 and DMS-0406038
  • © Copyright 2006 American Mathematical Society
    The copyright for this article reverts to public domain 28 years after publication.
  • Journal: J. Amer. Math. Soc. 19 (2006), 625-657
  • MSC (2000): Primary 57N10, 57M50; Secondary 57M25
  • DOI: https://doi.org/10.1090/S0894-0347-06-00520-0
  • MathSciNet review: 2220101