Nonzero limiting endpoint distance for hyperbolic self-avoiding walks at a power-law step size

Consider continuous nn-step self-avoiding walks on the hyperbolic space Hd\mathbb{H}^d, with steps of length ε\varepsilon and with the distance between every pair of vertices conditioned to exceed cεc\varepsilon, where 0<c<10<c<1. Write En,ε\mathbb{E}_{n,\varepsilon} for expectation under this measure. Power-law scaling conjecture. There exists a constant β=β(d,c)\beta=\beta(d,c) with 0<β<10<\beta<1 such that

limnEn,nβ(d(x0,xn))\lim_{n\to\infty}\mathbb{E}_{n,n^{-\beta}}\bigl(d(x_0,x_n)\bigr)

exists and is not zero, possibly up to logarithmic factors. This conjecture proposes a nonzero limiting endpoint distance in an intermediate power-law scaling regime, complementing the inverse-linear step-size problem; its resolution is left open in the source.

Sources & referencesView supporting material

Primary source

Itai Benjamini and Christoforos Panagiotis, “Hyperbolic self avoiding walk”, arXiv:2007.03534 (2020).

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