Homology-dimension conjecture for Vietoris–Rips complexes of hypercube graphs

From papers

Let In\mathbb{I}_n denote the nn-dimensional hypercube graph, and let VR(In;r)\mathcal{VR}(\mathbb{I}_n;r) be its Vietoris–Rips complex at scale rr. For r{2,3}r\in\{2,3\}, write H~i(;Z)\widetilde{H}_i(-;\mathbb{Z}) for reduced homology in dimension ii. Homology-dimension conjecture. For nr+2n\geq r+2,

H~i(VR(In;r);Z)0\widetilde{H}_i(\mathcal{VR}(\mathbb{I}_n;r);\mathbb{Z})\neq 0

if and only if i{r+1,2r1}i\in\{r+1,2^r-1\}. This extends the established cases at scales 22 and 33, and predicts that these are the only dimensions supporting nontrivial homology for the indicated parameters.

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Sources & referencesView supporting material

Primary source

Samir Shukla, “On Vietoris–Rips complexes (with scale 3) of hypercube graphs”, arXiv:2202.02756 (2023).

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