Probabilistic formula for the energy-kernel representative on infinite resistance networks

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Let GG be an infinite resistance network with origin oo, and let vxv_x be the representative of an element of the energy kernel normalized by vx(o)=0v_x(o)=0. Write RF(o,x)R^F(o,x) for the free effective resistance between oo and xx, let τz\tau_z denote the hitting time of zz, and let ∣C∣<∞|\mathcal{C}|<\infty denote the event that the random-walk trajectory is bounded, meaning that it is contained in a finite subnetwork of GG. Probabilistic formula for the energy-kernel representative. For x≠ox\ne o, the function vxv_x is given by

vx(y)=RF(o,x) Py[τx<τo∣∣C∣<∞].v_x(y)=R^F(o,x)\,\mathbb{P}_y[\tau_x<\tau_o\mid |\mathcal{C}|<\infty].

Thus the random walk is conditioned to lie entirely in some finite subnetwork. The conjecture proposes an extension of the corresponding probabilistic formula from finite resistance networks to infinite ones; the source explicitly presents the accompanying argument as an erroneous proof, so the formula remains unverified here.

References

Primary source

Palle E. T. Jorgensen and Erin P. J. Pearse, “Operator theory of electrical resistance networks”, arXiv:0806.3881 (2009).

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