Loop-Erased Random Walk on a Torus in Dimensions 4 and Above
Loop-Erased Random Walk on a Torus in Dimensions 4 and Above
复制标题
维度 4 及以上的环面上的循环擦除随机游走
DOI:
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
G. Kozma
中科院分区:
文献类型:
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作者:
I. Benjamini;G. Kozma
We show that the statistics of loop erased random walks above the upper critical dimension, 4, are different between the torus and the full space. The typical length of the path connecting a pair of sites at distance L, which scales as L2 in the full space, changes under the periodic boundary conditions to Ld/2. The results are precise for dimensions ≥5; for the dimension d=4 we prove an upper bound, conjecturally sharp up to subpolyonmial factors.