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A mixed invariant of non-orientable surfaces in equivariant Khovanov homology

Published 18 Sep 2021 in math.GT | (2109.09018v3)

Abstract: We construct a mixed invariant of non-orientable surfaces from the Lee and Bar-Natan deformations of Khovanov homology and use it to distinguish pairs of surfaces bounded by the same knot, including some exotic examples.

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