Homotopy functoriality for Khovanov spectra
arXiv:2104.12907 · doi:10.1112/topo.12274
Abstract
We prove that the Khovanov spectra associated to links and tangles are functorial up to homotopy and sign.
arXiv comment45 pages, 6 figures. V2: add discussion of neck cutting and ribbon concordances. V3: minor revisions. Accepted for publication in the Journal of Topology
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