Geodesic
The~$1/N$-expansion for flag-manifold $\sigma$-models
Teoretičeskaâ i matematičeskaâ fizika, Tome 197 (2018) no. 3, pp. 345-355

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

We derive the Feynman rules for the $1/N$-expansion of the simplest $\sigma$-model in the class of models that we previously proposed. We consider the case where the target space is the flag manifold $\frac{U(N)}{U(1)\times U(1)\times U(N-2)}$.
Keywords: $\sigma$-model, Feynman rule, $1/N$-expansion. 
@article{TMF_2018_197_3_a0,
     author = {D. V. Bykov},
     title = {The~$1/N$-expansion for flag-manifold $\sigma$-models},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {345--355},
     publisher = {mathdoc},
     volume = {197},
     number = {3},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2018_197_3_a0/}
}
TY  - JOUR
AU  - D. V. Bykov
TI  - The~$1/N$-expansion for flag-manifold $\sigma$-models
JO  - Teoretičeskaâ i matematičeskaâ fizika
PY  - 2018
SP  - 345
EP  - 355
VL  - 197
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/TMF_2018_197_3_a0/
LA  - ru
ID  - TMF_2018_197_3_a0
ER  - 
%0 Journal Article
%A D. V. Bykov
%T The~$1/N$-expansion for flag-manifold $\sigma$-models
%J Teoretičeskaâ i matematičeskaâ fizika
%D 2018
%P 345-355
%V 197
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_2018_197_3_a0/
%G ru
%F TMF_2018_197_3_a0
D. V. Bykov. The~$1/N$-expansion for flag-manifold $\sigma$-models. Teoretičeskaâ i matematičeskaâ fizika, Tome 197 (2018) no. 3, pp. 345-355. http://geodesic.mathdoc.fr/item/TMF_2018_197_3_a0/