Geodesic
Fluctuation phenomena in the tricritical behavior of two models with tensor order parameter
Teoretičeskaâ i matematičeskaâ fizika, Tome 64 (1985) no. 2, pp. 312-322 Cet article a éte moissonné depuis la source Math-Net.Ru

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The fluctuation theory of phase transitions is used to study tricritical behavior in the isotropic phase of two models in which the order parameter is a $p$-dimensional symmetric traceless tensor. For arbitrary values of $p$, differential equations are obtained for the vertex functions from the second to the sixth orders as functions of the reciprocal susceptibility. The cases $p=1,2,3$ are studied. For $p=1,2$, the models exhibit tricritical behavior. For $p=3$, allowance for fluctuations leads in the general case to the appearance of instability in the critical behavior of the models and to the replacement of tricritical behavior by a phase transition of the first kind. 
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     title = {Fluctuation phenomena in the tricritical behavior of two models with tensor order parameter},
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A. V. Smirnov; B. A. Storonkin. Fluctuation phenomena in the tricritical behavior of two models with tensor order parameter. Teoretičeskaâ i matematičeskaâ fizika, Tome 64 (1985) no. 2, pp. 312-322. http://geodesic.mathdoc.fr/item/TMF_1985_64_2_a12/

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