A Fox-Neuwirth Basis for the Sinha Spectral Sequence
A Fox-Neuwirth Basis for the Sinha Spectral Sequence
Recently, Sinha defined a spectral sequence approximating the (co)homology of the space of long knots in R^m modulo immersions, stemming from a cosimplicial structure on the compactified configuration spaces \`a la Kontsevich. We provide an equivalent cosimplicial structure on (the barycentric subdivision of) a regular CW complex with cells indexed by Fox-Neuwirth trees. As a corollary, we give a combinatorial presentation of the Sinha Spectral Sequence in terms of Fox-Neuwirth trees for all dimensions m>=2 and all coefficients.
Andrea Marino
数学
Andrea Marino.A Fox-Neuwirth Basis for the Sinha Spectral Sequence[EB/OL].(2025-05-28)[2025-06-30].https://arxiv.org/abs/2505.22958.点此复制
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