Kahle's bouquet of spheres conjecture for random clique complexes

Let dd be an integer with d3d\geq 3, let α\alpha satisfy

1d+1<α<1d,\frac{1}{d+1}<\alpha<\frac{1}{d},

and let ΔΔ(n,nα)\Delta\sim\Delta(n,n^{-\alpha}) be a random clique complex. Kahle's bouquet of spheres conjecture. With high probability, Δ\Delta is homotopy equivalent to a bouquet of dd-dimensional spheres. This would strengthen the known rational homology-vanishing and nonvanishing results in the stated probability range by determining the homotopy type; the conjecture remains open in the source.

Sources & referencesView supporting material

Primary source

Anton Dochtermann and Andrew Newman, “Random subcomplexes and Betti numbers of random edge ideals”, arXiv:2104.12882 (2023).

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