Eigenvalues and Faraday Tensor

Notice that the electric field and magnetic field, each can be represented as spatialvectors with ۳ components, into a space-time quantity, a ۴-by-۴ matrix known as the Faradaytensor defined by ( ). are respectively the components of the electric and magnetic fields, as measured by aninertial observer and at rest in our coordinates. In this manner see [۱-۳]. Set