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On the functoriality of Khovanov–Floer theories.

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Title: On the functoriality of Khovanov–Floer theories.
Authors: Baldwin, John A.1 john.baldwin@bc.edu, Hedden, Matthew1,2 mhedden@math.msu.edu, Lobb, Andrew1,3 andrew.lobb@durham.ac.uk
Source: Advances in Mathematics. Mar2019, Vol. 345, p1162-1205. 44p.
Subject Terms: *Floer homology, *Spectral sequences (Mathematics), *Cobordism theory, *Isotopes, *Invariant manifolds
Abstract: Abstract We introduce the notion of a Khovanov–Floer theory. We prove that every page (after E 1) of the spectral sequence accompanying a Khovanov–Floer theory is a link invariant, and that an oriented link cobordism induces a map on each page which is an invariant of the cobordism up to smooth isotopy rel boundary. We then prove that the spectral sequences relating Khovanov homology to Heegaard Floer homology and singular instanton knot homology are induced by Khovanov–Floer theories and are therefore functorial in the manner described above, as had been conjectured for some time. [ABSTRACT FROM AUTHOR]
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  Data: <searchLink fieldCode="AR" term="%22Baldwin%2C+John+A%2E%22">Baldwin, John A.</searchLink><relatesTo>1</relatesTo><i> john.baldwin@bc.edu</i><br /><searchLink fieldCode="AR" term="%22Hedden%2C+Matthew%22">Hedden, Matthew</searchLink><relatesTo>1,2</relatesTo><i> mhedden@math.msu.edu</i><br /><searchLink fieldCode="AR" term="%22Lobb%2C+Andrew%22">Lobb, Andrew</searchLink><relatesTo>1,3</relatesTo><i> andrew.lobb@durham.ac.uk</i>
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  Data: *<searchLink fieldCode="DE" term="%22Floer+homology%22">Floer homology</searchLink><br />*<searchLink fieldCode="DE" term="%22Spectral+sequences+%28Mathematics%29%22">Spectral sequences (Mathematics)</searchLink><br />*<searchLink fieldCode="DE" term="%22Cobordism+theory%22">Cobordism theory</searchLink><br />*<searchLink fieldCode="DE" term="%22Isotopes%22">Isotopes</searchLink><br />*<searchLink fieldCode="DE" term="%22Invariant+manifolds%22">Invariant manifolds</searchLink>
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  Data: Abstract We introduce the notion of a Khovanov–Floer theory. We prove that every page (after E 1) of the spectral sequence accompanying a Khovanov–Floer theory is a link invariant, and that an oriented link cobordism induces a map on each page which is an invariant of the cobordism up to smooth isotopy rel boundary. We then prove that the spectral sequences relating Khovanov homology to Heegaard Floer homology and singular instanton knot homology are induced by Khovanov–Floer theories and are therefore functorial in the manner described above, as had been conjectured for some time. [ABSTRACT FROM AUTHOR]
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        Value: 10.1016/j.aim.2019.01.026
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              Text: Mar2019
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