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Strongly invertible knots, Khovanov homology, and surfaces


Speaker: Robert Lipshitz, University of Oregon
Location: 2112 MSB
Start time: Thu, Apr 20 2023, 1:10PM

Strong inversions are a class of order-2 symmetries of knots in S^3. Building on work of Lidman-Manolescu, Stoffregen-Zhang, and others, we will describe a relationship between the Khovanov homology of a knot with a strong inversion and its quotients by the inversion. We will also give a modest application to surfaces in 4-space. This is joint work with Sucharit Sarkar