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arXiv 1107.1680math.PRmath-phmath.MP
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通过Galton-Watson类过程绝灭的一个新结果发展Gibbs测度的完全模拟

Developments in perfect simulation of Gibbs measures through a new result for the extinction of Galton-Watson-like processes

Emilio De Santis, Andrea Lissandrelli

摘要:

本文讨论了具有无穷程相互作用的Gibbs测度的完全抽样问题。本文给出了上鞅过程在取大值时灭绝的若干充分条件。这一结果对完美模拟有深刻的影响,表明对模型相互作用的局部修改不会影响可模拟性。我们还提出了优化一类序列集的影响的充分条件的吉布斯测度的完美模拟的问题。对于长程伊辛模型和有限程相互作用自旋模型,我们完全解决了这个问题。

英文摘要:

This paper deals with the problem of perfect sampling from a Gibbs measure with infinite range interactions. We present some sufficient conditions for the extinction of processes which are like supermartingales when large values are taken. This result has deep consequences on perfect simulation, showing that local modifications on the interactions of a model do not affect simulability. We also pose the question to optimize over a class of sequences of sets that influence the sufficient condition for the perfect simulation of the Gibbs measure. We completely solve this question both for the long range Ising models and for the spin models with finite range interactions.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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