Abstract
Using local Ward identities and a new correlation inequality, we prove that the mean field transition temperature is an upper bound on the true transition temperature in multicomponent Heisenberg-type classical ferromagnets.
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Research partially supported by the NSF under Grant MCS-78-01885.
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Simon, B. Mean field upper bound on the transition temperature in multicomponent ferromagnets. J Stat Phys 22, 491–493 (1980). https://doi.org/10.1007/BF01012868
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DOI: https://doi.org/10.1007/BF01012868