Geodesic
On a method of calculating correlation functions
Teoretičeskaâ i matematičeskaâ fizika, Tome 13 (1972) no. 1, pp. 131-139 
N. N. Bogolyubov (Jr.). On a method of calculating correlation functions. Teoretičeskaâ i matematičeskaâ fizika, Tome 13 (1972) no. 1, pp. 131-139. http://geodesic.mathdoc.fr/item/TMF_1972_13_1_a10/
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Voir la notice de l'article provenant de la source Math-Net.Ru

A method is developed for determining quasiaverages for certain model systems; the method does not require the basic system to be augmented with source terms. It is shown that the program is realistic, although the majorizing estimates are appreciably more complicated. Some examples of calculating quasiaverages are given.

[1] N. N. Bogolyubov (ml.), TMF, 4 (1970), 412 | Zbl

[2] N. N. Bogolyubov (ml.), TMF, 5 (1970), 136 | MR

[3] N. N. Bogolyubov, Kvazisrednie v zadachakh statisticheskoi mekhaniki, Preprint R-1451, OIYaI, 1961 | MR

[4] N. N. Bogolyubov (ml.), Preprint R4-4184, OIYaI, 1968

[5] V. L. Bonch-Bruevich, ZhETF, 31 (1956), 522

[6] N. N. Bogolyubov, S. V. Tyablikov, DAN SSSR, 126 (1959), 53 | Zbl