Quasi-isomorphism conjecture for link and braid diagram complexes

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For n≥3n\geq 3, let Lmn\mathcal{L}_{m}^{n} be the space of long links of mm components in Rn\mathbb{R}^{n}, and let Bmn\mathcal{B}_{m}^{n} be the space of flattened pure braids. For each o>0o>0 and d≥0d\geq 0, let LDo,d\mathcal{LD}^{o,d} and BDo,d\mathcal{BD}^{o,d} be the corresponding diagram complexes, with cochain maps given by configuration space integrals:

LDo,∗⟶Ω(n−3)o+∗(Lmn),BDo,∗⟶Ω(n−3)o+∗(Bmn).\mathcal{LD}^{o,*} \longrightarrow \Omega^{(n-3)o+*}(\mathcal{L}_{m}^{n}),\qquad \mathcal{BD}^{o,*} \longrightarrow \Omega^{(n-3)o+*}(\mathcal{B}_{m}^{n}).

Quasi-isomorphism conjecture. The cochain maps from Theorem 1 are quasi-isomorphisms for n>3n>3. This conjecture asserts that the diagram complexes calculate the cohomology of spaces of long links and flattened pure braids in dimensions greater than three; the supplied text gives no resolution status.

References

Primary source

Ismar Volic, “On the cohomology of spaces of links and braids via configuration space integrals”, arXiv:1002.2467 (2010).

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