Long-range self-avoiding walk converges to alpha-stable processes

Details Long-range self-avoiding walk converges to alpha-stable processes Long-range self-avoiding walk converges to alpha-stable processes

2008-09-25

arxiv.org/abs/0809.4333v2

Mathematics

Probability

25 pages. Version v2: Corrected proof of Theorem 1.4 and various minor changes. To appear in Ann. Inst. H. Poincare Probab. St

Scientific paper

We consider a long-range version of self-avoiding walk in dimension $d > 2(\alpha \wedge 2)$, where $d$ denotes dimension and $\alpha$ the power-law decay exponent of the coupling function. Under appropriate scaling we prove convergence to Brownian motion for $\alpha \ge 2$, and to $\alpha$-stable L\'evy motion for $\alpha < 2$. This complements results by Slade (1988), who proves convergence to Brownian motion for nearest-neighbor self-avoiding walk in high dimension.

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