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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 2020 MCQ for Journal of the American Mathematical Society is 4.83.

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Geometric criteria for overtwistedness
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by Roger Casals, Emmy Murphy and Francisco Presas
J. Amer. Math. Soc. 32 (2019), 563-604
DOI: https://doi.org/10.1090/jams/917
Published electronically: January 3, 2019

Abstract:

In this article we establish efficient geometric criteria to decide whether a contact manifold is overtwisted. Starting with the original definition, we first relate overtwisted disks in different dimensions and show that a manifold is overtwisted if and only if the Legendrian unknot admits a loose chart. Then we characterize overtwistedness in terms of the monodromy of open book decompositions and contact surgeries. Finally, we provide several applications of these geometric criteria.
References
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Bibliographic Information
  • Roger Casals
  • Affiliation: Department of Mathematics, University of California Davis, Shields Avenue, Davis, California 95616
  • MR Author ID: 1096004
  • Email: casals@math.ucdavis.edu
  • Emmy Murphy
  • Affiliation: Department of Mathematics, Northwestern University, 2033 Sheridan Road, Evanston, Illinois 60208
  • MR Author ID: 1028435
  • Email: e_murphy@math.northwestern.edu
  • Francisco Presas
  • Affiliation: Instituto de Ciencias Matemáticas CSIC, C. Nicolás Cabrera, 13 28049 Madrid, Spain
  • MR Author ID: 678330
  • Email: fpresas@icmat.es
  • Received by editor(s): January 23, 2017
  • Received by editor(s) in revised form: September 12, 2018, and October 8, 2018
  • Published electronically: January 3, 2019
  • Additional Notes: The first author was supported by NSF grant DMS-1841913 and a BBVA Research Fellowship.
    The second author was supported by NSF grant DMS-1510305 and a Sloan Research Fellowship.
    The third author was supported by Spanish Research Projects SEV–2015–0554, MTM2016–79400–P, and MTM2015–72876–EXP
  • © Copyright 2019 American Mathematical Society
  • Journal: J. Amer. Math. Soc. 32 (2019), 563-604
  • MSC (2010): Primary 57R17; Secondary 53D10, 53D15
  • DOI: https://doi.org/10.1090/jams/917
  • MathSciNet review: 3904160