Rong coupling method in a scalar (3)-symmetric theory

Bogolyubov's method in the limit of strong coupling is used to investigate an $SU(3)$-symmetric scalar static theory. A perturbation theory series is constructed in reciprocal powers of the coupling constant $g$, the conservation laws for the isotopic spin and the hypercharge of the system being taken into account exactly. The levels of excited states of the system are calculated.