Lebowitz Inequalities for Ashkin-Teller Systems

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We consider the Ashkin-Teller model with negative four-spin coupling but still in the region where the ground state is ferromagnetic. We establish the standard Lebowitz inequality as well as the extension that is necessary to prove a divergent susceptibility.
Ams-TeX, 12 pages; two references added, final version accepted for publication in Physica A

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Statistical Mechanics

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http://salesiana.dossiersoluciones.com/handle/123456789/29886

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9911046
 http://arxiv.org/abs/cond-mat/9911046
 Physica A, 279, 312--323 (2000)
 doi:10.1016/S0378-4371(99)00516-6

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arXiv