Abstract
We present rigorous correlation inequalities for connectedn-point functions in a class of even ferromagnets. The class includes spin-1/2 Ising models and scalar field models with potential functionV which is even and continuously differentiable withV′ convex on [0, ∞). These inequalities are obtained by pushing ahead with the method of Ellis, Monroe, and Newman at its maximum.
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K.-I. Kondo, Nagoya Univ. preprint, DPNU-84-25.
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Kondo, Ki., Otofuji, T. & Sugiyama, Y. Correlation inequalities for a class of even ferromagnets. J Stat Phys 40, 563–575 (1985). https://doi.org/10.1007/BF01017185
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DOI: https://doi.org/10.1007/BF01017185