Bounded Novikov conjecture for foliations

Let (M,F)(M,\mathcal{F}) be a foliation on a compact manifold, let BGBG be the classifying space of its holonomy groupoid, and let Llf\mathcal{L}^{lf} be the cosheaf assigning to each xBGx\in BG the locally finite LL-homology of the leaf through xx. Let LF,bdd(M)L_*^{\mathcal{F},bdd}(M) denote the bounded foliated surgery group. Bounded Novikov conjecture for foliations. If the leaves of (M,F)(M,\mathcal{F}) are uniformly contractible, then the map

H(BG;Llf)LF,bdd(M)H_*(BG;\mathcal{L}^{lf})\to L_*^{\mathcal{F},bdd}(M)

is injective. This is a foliated analogue of the Novikov conjecture, asserting injectivity of the bounded surgery assembly map under a uniform contractibility hypothesis on the leaves.

Sources & referencesView supporting material

Primary source

Oliver Attie and Sylvain Cappell, “Bott Integrability and Higher Integrability; Higher Cheeger-Simons and Godbillon-Vey Invariants”, arXiv:2209.12338 (2022).

Additional references

2 papers in this index state this conjecture (2022). The statement above is taken from the most recent of them; the others are arXiv:2207.07950.

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