Equation Icon  ( { 2 }) −1∕(d− 1) ( 2 { 2 } ) V (ϕ0) = − det -----∂-ℒ------ × -∂-ℒ--− ∂μ ---∂-ℒ---- . (138 ) ∂ (∂μϕ)∂(∂νϕ ) ∂ϕ ∂ϕ ∂(∂μϕ )∂ ϕ