Equation Icon  ⌊ ⌋ f00 ... f0j ||⋅⋅⋅⋅⋅⋅ ⋅ ⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅⋅|| fμν(t,x) ≡ | . | . (248 ) ⌈ fi0 .. fij ⌉