Gauge fields on the soliton membrane

Possible mechanisms of gauge field localization on soliton membrane are studied. The following variants are discussed: a)gauge symmetry is violated everywhere except membrane vicinity, therewith heavy vector massless vector fields are localized on membrane; b)gauge invariance is not disturbed anywhere, but far from membrane the gauge fields have strong coupling and in membrane vicinity - week coupling; c)massless vector fields arise as goldstone objects from the fields, condensed on membrane. Cases a) and b) require precised adjustment of parameters, c)-doesn't require it, though in this case violation of Lorentz invariance in small scales is possible