A generalized FKG-inequality for compositions
classification
🧮 math.AC
math.COmath.MG
keywords
inequalitycompositionsmixedalexandrov-fenchelapplicationclassicalcovolumesfkg-inequality
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We prove a Fortuin-Kasteleyn-Ginibre-type inequality for the lattice of compositions of the integer n with at most r parts. As an immediate application we get a wide generalization of the classical Alexandrov-Fenchel inequality for mixed volumes and of Teissier's inequality for mixed covolumes.
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