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A CONTACT INVARIANT IN SUTURED MONOPOLE HOMOLOGY

Part of: Symplectic geometry, contact geometry Differential topology

Published online by Cambridge University Press:  10 June 2016

JOHN A. BALDWIN  and
STEVEN SIVEK
JOHN A. BALDWIN
Affiliation:
Department of Mathematics, Boston College, Chestnut Hill, MA 02467-3806, USA; john.baldwin@bc.edu
STEVEN SIVEK
Affiliation:
Department of Mathematics, Princeton University, Princeton, NJ 08544-1000, USA; ssivek@math.princeton.edu

Abstract

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We define an invariant of contact 3-manifolds with convex boundary using Kronheimer and Mrowka’s sutured monopole Floer homology theory ( $SHM$ ). Our invariant can be viewed as a generalization of Kronheimer and Mrowka’s contact invariant for closed contact 3-manifolds and as the monopole Floer analogue of Honda, Kazez, and Matić’s contact invariant in sutured Heegaard Floer homology ( $SFH$ ). In the process of defining our invariant, we construct maps on $SHM$ associated to contact handle attachments, analogous to those defined by Honda, Kazez, and Matić in $SFH$ . We use these maps to establish a bypass exact triangle in $SHM$ analogous to Honda’s in $SFH$ . This paper also provides the topological basis for the construction of similar gluing maps in sutured instanton Floer homology, which are used in Baldwin and Sivek [Selecta Math. (N.S.), 22(2) (2016), 939–978] to define a contact invariant in the instanton Floer setting.

MSC classification

Primary: 53D10: Contact manifolds, general
Secondary: 53D40: Floer homology and cohomology, symplectic aspects 57R58: Floer homology
Type
Research Article
Information
Forum of Mathematics, Sigma , Volume 4 , 2016 , e12
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Creative Commons
Creative Common License - CCCreative Common License - BY
This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution, and reproduction in any medium, provided the original work is properly cited.
Copyright
© The Author(s) 2016

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