Totally twisted Khovanov homology
Andrew Manion (Princeton)
Abstract: The construction of totally twisted Khovanov homology, by
Lawrence Roberts, yields a chain complex whose homology contains the
same data as the usual Khovanov homology for knots (by work of
Jaeger). The complex is generated by spanning trees of the Tait graph
of a knot diagram, and the matrix coefficients of the differential can
be written down explicitly. It was originally defined over Z/2; I'll
review this construction and discuss how to define it over Z to
compute odd Khovanov homology for knots.