Electromagnetic Equations with Covariant Forms
Yong Wang · 2010
Based on Maxwell's equations with the most general forms,the covariant forms are deduced.In terms of the covariant equations,in vacuum,the general Maxwell equations are then deduced from the invariance of the equation under Lorentz's transformations.Following the Legendre transformation between Lagrange and Hamilton formalism,we extendedly defined a tensor,and give its expanded expression.Then the conservation law of energy-momentum is given by the tensor.