The Vassiliev degree bound for far combinatorial cohomology classes of long knots

Let Hd,fariH_{d,\text{far}}^i denote the submodule of ii-th cohomology classes in degree dd represented by cocycles in the far subcomplex, and let Hi(KΣ)H^i(\mathcal{K}\setminus\Sigma) be the cohomology of the complement of the discriminant in the space of long knots. Vassiliev degree-bound conjecture. The image of the map

Hd,fariHi(KΣ)H_{d,\text{far}}^i \rightarrow H^i(\mathcal{K}\setminus \Sigma)

consists of Vassiliev cohomology classes of degree at most dd. This would relate the combinatorial cochain complex to the Vassiliev filtration on the cohomology of the long-knot space; the supplied text does not state whether the claim has been proved or disproved.

Sources & referencesView supporting material

Primary source

Arnaud Mortier, “Combinatorial cohomology of the space of long knots”, arXiv:1408.5318 (2014).

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