Equation Icon  H˙⟨μν⟩ + ΘH μν + curlE μν − 3σα⟨μH ν⟩α + ω α𝜀αβ(μH ν)β + 2A α𝜀αβ(μE ν)β = κ2 [ ] --- curlπℰμν − 3ω⟨μqℰν⟩ + σα(μ 𝜀ν)αβqℰβ . (133) 2