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Renormalisation Group Analysis of a gradient model with nonconvex interaction

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SRQ - Scaling limits, rough paths, quantum field theory

We study the finite volume Gibbs measure of a continuous Ising model on an integer lattice with non-convex interaction. S. Adams, R. Kotecky and S. Müller performed a Renormalisation Group Analysis to prove the strict convexity of the free energy. We extend their result to prove decay of covariances.  

This talk is part of the Isaac Newton Institute Seminar Series series.

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