Equation Icon  ∫ ∘ --- [ ] S (ϕq) ∝ − d4x − &tidle;g 1(&tidle;gμνq,μq,ν +H (q)(&tidle;gμν + U μUν)ϕ,μ ϕ,ν ) − F(q)U μU νϕ,μϕ,ν +V (q) .(89 ) 2