%0 Journal Article %A Jun Yan %T Functional integrals and phase stability properties in the~$O(N)$ vector field condensation model %J Teoretičeskaâ i matematičeskaâ fizika %D 2022 %P 128-139 %V 210 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2022_210_1_a7/ %G ru %F TMF_2022_210_1_a7