Scaling-limit conjecture for dynamical supercritical oriented percolation

Let Γsϵ\Gamma_s^\epsilon be the set of right-most infinite open paths at dynamical time ss. Let Sα(p),σ(p),ϵS_{\alpha(p),\sigma(p),\epsilon} denote the corresponding space-time rescaling, and let (Ws;s0)({\cal W}_s; s\geq 0) be the dynamical Brownian web. Scaling-limit conjecture. There exists a constant c(p)c(p) such that

Sα(p),σ(p),ϵ(Γsϵ;s0)ϵ0(Wc(p)s;s0).S_{\alpha(p),\sigma(p),\epsilon}(\Gamma_s^\epsilon; s\geq 0) \underset{\epsilon\to 0}{\Longrightarrow} ({{\cal W}_{c(p)s}}; s\geq 0).

This asserts that the dynamically evolving right-most infinite paths of supercritical oriented percolation converge, after the model's characteristic rescaling, to a time-rescaled dynamical Brownian web. The statement identifies the continuum dynamical object arising from perturbing the percolation environment, with the constant c(p)c(p) accounting for the dynamical-time normalization.

Sources & referencesView supporting material

Primary source

Emmanuel Schertzer and Rongfeng Sun, “Perturbations of supercritical oriented percolation and sticky Brownian webs”, arXiv:1811.01849 (2019).

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