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arXiv 1011.6579math-phcond-mat.stat-mechmath.COmath.MP
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单体-二聚体问题的渐近展开和递归不等式

An Asymptotic Expansion and Recursive Inequalities for the Monomer-Dimer Problem

Paul Federbush, Shmuel Friedland

摘要:

设(lambda_d)(p)是d维整数格Z^d上的p个单体-二聚体熵,其中[0,1]中的p是二聚体密度。我们用包含(lambda_(d-1))(q)的表达式给出了(lambda_d)(p)的上、下界.上界是基于一个猜想,该猜想声称Z^d的无限子集的p个单体-二聚体熵由(lambda_d)(p)上界。我们计算(lambda_d)(p)的1/d幂形式渐近展开式的前三项。证明了(λ_d)(p)满足下渐近匹配猜想.

英文摘要:

Let (lambda_d)(p) be the p monomer-dimer entropy on the d-dimensional integer lattice Z^d, where p in [0,1] is the dimer density. We give upper and lower bounds for (lambda_d)(p) in terms of expressions involving (lambda_(d-1))(q). The upper bound is based on a conjecture claiming that the p monomer-dimer entropy of an infinite subset of Z^d is bounded above by (lambda_d)(p). We compute the first three terms in the formal asymptotic expansion of (lambda_d)(p) in powers of 1/d. We prove that the lower asymptotic matching conjecture is satisfied for (lambda_d)(p).

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