Geodesic
Aspects of the diagram technique for Hubbard operators
Teoretičeskaâ i matematičeskaâ fizika, Tome 59 (1984) no. 2, pp. 293-296 
A. V. Vedyaev; M. Yu. Nikolaev. Aspects of the diagram technique for Hubbard operators. Teoretičeskaâ i matematičeskaâ fizika, Tome 59 (1984) no. 2, pp. 293-296. http://geodesic.mathdoc.fr/item/TMF_1984_59_2_a11/
@article{TMF_1984_59_2_a11,
     author = {A. V. Vedyaev and M. Yu. Nikolaev},
     title = {Aspects of the diagram technique for {Hubbard} operators},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {293--296},
     year = {1984},
     volume = {59},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1984_59_2_a11/}
}
TY  - JOUR
AU  - A. V. Vedyaev
AU  - M. Yu. Nikolaev
TI  - Aspects of the diagram technique for Hubbard operators
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 1984
SP  - 293
EP  - 296
VL  - 59
IS  - 2
UR  - http://geodesic.mathdoc.fr/item/TMF_1984_59_2_a11/
LA  - ru
ID  - TMF_1984_59_2_a11
ER  - 
%0 Journal Article
%A A. V. Vedyaev
%A M. Yu. Nikolaev
%T Aspects of the diagram technique for Hubbard operators
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1984
%P 293-296
%V 59
%N 2
%U http://geodesic.mathdoc.fr/item/TMF_1984_59_2_a11/
%G ru
%F TMF_1984_59_2_a11

Voir la notice de l'article provenant de la source Math-Net.Ru

Two features of the diagram technique for Hubbard operators are established, namely, the need to choose a definite way to disentangle nondiagonal operators from a time-ordered product and linear dependence of the concentration fluctuations on the temperature.

[1] Hubbard J., Proc. Roy. Soc., A285:4 (1965), 542–560 | DOI | MR

[2] Zaitsev R. O., ZhETF, 68:1 (1975), 207–215

[3] Zaitsev R. O., ZhETF, 70:3 (1976), 1100–1111

[4] Vedyaev A. V., Ivanov V. A., TMF, 50:3 (1982), 415–419

[5] Valkov V. V., Ovchinnikov S. G., TMF, 50:3 (1982), 466–476 | MR

[6] Vaks A. I., Larkin V. G., Pikin S. A., ZhETF, 53:1 (1967), 281–299; 3, 1089–1106

[7] Izyumov Yu. A., Kassan-ogly F. A., Skryabin Yu. N., Polevye metody v teorii ferromagnetizma, Nauka, M., 1974, 224 pp.