Geodesic
Exact solution for the partition function of a~system of interacting fermions
Teoretičeskaâ i matematičeskaâ fizika, Tome 68 (1986) no. 1, pp. 106-116

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A simple method for passing from lattice statistical models to systems of interacting fermions is proposed. Two systems of free fermions coupled by a four-particle interaction of one type are considered. The general properties of the model are investigated, and an exact solution to the problem is obtained for a specific case. 
@article{TMF_1986_68_1_a8,
     author = {M. P. Zhelifonov and B. S. Nikitin},
     title = {Exact solution for the partition function of a~system of interacting fermions},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {106--116},
     publisher = {mathdoc},
     volume = {68},
     number = {1},
     year = {1986},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1986_68_1_a8/}
}
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M. P. Zhelifonov; B. S. Nikitin. Exact solution for the partition function of a~system of interacting fermions. Teoretičeskaâ i matematičeskaâ fizika, Tome 68 (1986) no. 1, pp. 106-116. http://geodesic.mathdoc.fr/item/TMF_1986_68_1_a8/