Analytic equivariant coarse Novikov conjecture

Let Γ\Gamma be a countable discrete group, and let XX be a proper metric space with a free and proper Γ\Gamma-action. Consider the map

νXΓ:limd,nKΓ(Pd,n~(X))QπlimdKΓ(Pd(X))QK(C(X)Γ)Q.\nu_X^{\Gamma}:\lim_{d,n\to\infty}K_*^{\Gamma}(\widetilde{P_{d,n}}(X))\otimes\mathbb Q\xrightarrow{\pi_*}\lim_{d\to\infty}K_*^{\Gamma}(P_d(X))\otimes\mathbb Q\to K_*(C^*(X)^{\Gamma})\otimes\mathbb Q.

Analytic equivariant coarse Novikov conjecture. The composition of π\pi_* and the assembly map, namely the Miščenko–Kasparov assembly map νXΓ\nu_X^{\Gamma}, is injective. This is a rational injectivity statement for the analytic assembly map in the presence of a free and proper group action.

Sources & referencesView supporting material

Primary source

Liang Guo, Qin Wang, Jianchao Wu and Guoliang Yu, “Hilbert-Hadamard spaces and the equivariant coarse Novikov conjecture”, arXiv:2411.18538 (2025).

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