Orbital stability of ground states for a Sobolev critical Schrödinger equation

We study the existence of ground state standing waves, of prescribed mass, for the nonlinear Schrödinger equation with mixed power nonlinearitiesi∂tv+Δv+μv|v|q−2+v|v|2⁎−2=0,(t,x)∈R×RN, where N≥3, v:R×RN→C, μ>0, 20, 2