Superconductivity in the hubbard model with deviation from half filling
Teoretičeskaâ i matematičeskaâ fizika, Tome 92 (1992) no. 2, pp. 182-190

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An equation that determines the critical temperature of the superconducting transition is obtained on the basis of allowance for strong electron correlations. A deviation from half filling of the band is assumed. The equation is manifestly symmetric with respect to replacement of particles by holes.
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     author = {N. N. Bogolyubov and V. A. Moskalenko},
     title = {Superconductivity in the hubbard model with deviation from half filling},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
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     number = {2},
     year = {1992},
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     url = {http://geodesic.mathdoc.fr/item/TMF_1992_92_2_a1/}
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N. N. Bogolyubov; V. A. Moskalenko. Superconductivity in the hubbard model with deviation from half filling. Teoretičeskaâ i matematičeskaâ fizika, Tome 92 (1992) no. 2, pp. 182-190. http://geodesic.mathdoc.fr/item/TMF_1992_92_2_a1/