Geodesic
Optimal method for truncating a chain of equations for two-time
Teoretičeskaâ i matematičeskaâ fizika, Tome 147 (2006) no. 3, pp. 503-510

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We use an example of a chain of equations describing a system of Bose particles with pairwise interaction to develop a method for decoupling the chain at its second element. We obtain an approximation of the interacting-modes type, which results in a system of nonlinear equations for one-, two-, and three-particle functions.
Keywords: Green's functions, approximation of interacting modes.
Mots-clés : chains of equations 
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     author = {Yu. A. Tserkovnikov},
     title = {Optimal method for truncating a chain of equations for two-time},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
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     publisher = {mathdoc},
     volume = {147},
     number = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2006_147_3_a7/}
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Yu. A. Tserkovnikov. Optimal method for truncating a chain of equations for two-time. Teoretičeskaâ i matematičeskaâ fizika, Tome 147 (2006) no. 3, pp. 503-510. http://geodesic.mathdoc.fr/item/TMF_2006_147_3_a7/