Large deviation principles for Euclidean functionals and other nearly additive processes

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Abstract

We prove a large deviation principle for a process indexed by cubes of the multi-dimensional integer lattice or Euclidean space, under approximate additivity and regularity hypotheses. The rate function is the convex dual of the limiting logarithmic moment generating function. In some applications the rate function can be expressed in terms of relative entropy. The general result applies to processes in Euclidean combinatorial optimization, statistical mechanics, and computational geometry. Examples include the length of the minimal tour (the traveling salesman problem), the length of the minimal matching graph, the length of the minimal spanning tree, the length of the k-nearest neighbors graph, and the free energy of a short-range spin glass model.

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Seppäläinen, T., & Yukich, J. E. (2001). Large deviation principles for Euclidean functionals and other nearly additive processes. Probability Theory and Related Fields, 120(3), 309–345. https://doi.org/10.1007/PL00008785

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