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Transactions of the American Mathematical Society

Published by the American Mathematical Society since 1900, Transactions of the American Mathematical Society is devoted to longer research articles in all areas of pure and applied mathematics.

ISSN 1088-6850 (online) ISSN 0002-9947 (print)

The 2020 MCQ for Transactions of the American Mathematical Society is 1.48.

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Three-manifolds with many flat planes
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by Renato G. Bettiol and Benjamin Schmidt PDF
Trans. Amer. Math. Soc. 370 (2018), 669-693 Request permission

Abstract:

We discuss the rigidity (or lack thereof) imposed by different notions of having an abundance of zero curvature planes on a complete Riemannian $3$-manifold. We prove a rank rigidity theorem for complete $3$-manifolds, showing that having higher rank is equivalent to having reducible universal covering. We also study $3$-manifolds such that every tangent vector is contained in a flat plane, including examples with irreducible universal covering, and discuss the effect of finite volume and real-analyticity assumptions.
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Additional Information
  • Renato G. Bettiol
  • Affiliation: Department of Mathematics, University of Pennsylvania, 209 South 33rd Street, Philadelphia, Pennsylvania 19104-6395
  • MR Author ID: 903824
  • ORCID: 0000-0003-0244-4484
  • Email: rbettiol@math.upenn.edu
  • Benjamin Schmidt
  • Affiliation: Department of Mathematics, Michigan State University, 619 Red Cedar Road, East Lansing, Michigan 48824
  • MR Author ID: 803074
  • Email: schmidt@math.msu.edu
  • Received by editor(s): November 24, 2015
  • Received by editor(s) in revised form: April 18, 2016, and April 21, 2016
  • Published electronically: September 15, 2017
  • Additional Notes: The first-named author was partially supported by the NSF grant DMS-1209387
    The second-named author was partially supported by the NSF grant DMS-1207655
  • © Copyright 2017 American Mathematical Society
  • Journal: Trans. Amer. Math. Soc. 370 (2018), 669-693
  • MSC (2010): Primary 53B21, 53C20, 53C21, 53C24, 58A07, 58J60
  • DOI: https://doi.org/10.1090/tran/6961
  • MathSciNet review: 3717993