Minimum-volume asymptotics for Boltzmann random triangulations of the d-sphere

Let Sn(d)\mathcal{S}^{(d)}_n be the collection of triangulations of the dd-sphere, and let μn,β(d)\mu^{(d)}_{n,\beta} denote the median of the minimum volume of the Boltzmann random sphere Rβ,n(d)R^{(d)}_{\beta,n} at inverse temperature β[0,)\beta\in[0,\infty). Boltzmann minimum-volume asymptotic conjecture. For every d2d\geq 2 and β[0,)\beta\in[0,\infty), there are constants e(d)(β),cd,β>0e^{(d)}(\beta),c_{d,\beta}>0 such that

μn,β(d)=cd,βne(d)(β)+o(ne(d)(β)).\mu^{(d)}_{n,\beta}=c_{d,\beta}n^{e^{(d)}(\beta)}+o\bigl(n^{e^{(d)}(\beta)}\bigr).

This extends the conjectured sharp upper-bound exponent for uniformly random triangulations to the more general Boltzmann model. The corresponding statement is presented as an adaptation of the uniform-model conjecture; the supplied context does not state which cases are known or whether this formulation has been resolved.

Sources & referencesView supporting material

Primary source

Agelos Georgakopoulos, John Haslegrave and Joel Larsson Danielsson, “Random triangulations of the d-sphere with minimum volume”, arXiv:2409.00235 (2024).

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