Displaying similar documents to “Convex entropy decay via the Bochner–Bakry–Emery approach”

Functional inequalities and uniqueness of the Gibbs measure — from log-Sobolev to Poincaré

Pierre-André Zitt (2008)

ESAIM: Probability and Statistics

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In a statistical mechanics model with unbounded spins, we prove uniqueness of the Gibbs measure under various assumptions on finite volume functional inequalities. We follow Royer's approach (Royer, 1999) and obtain uniqueness by showing convergence properties of a Glauber-Langevin dynamics. The result was known when the measures on the box [- (with free boundary conditions) satisfied the same logarithmic Sobolev inequality. We generalize this in two directions: either the constants...

Heat kernel for random walk trace on ℤ3 and ℤ4

Daisuke Shiraishi (2010)

Annales de l'I.H.P. Probabilités et statistiques

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We study the simple random walk on the range of simple random walk on ℤ3 and ℤ4. In dimension four, we establish quenched bounds for the heat kernel of and max0≤≤| | which require extra logarithmic correction terms to the higher-dimensional case. In dimension three, we demonstrate anomalous behavior of at the quenched level. In order to establish these estimates, we obtain several asymptotic estimates for cut times of simple random walk and asymptotic estimates for...