When I was studying on anisotropic fields.I developed anisotropic operators.After I applied on them for Maxwell's equations.I called them as Anisotropic Maxwell's Equations.When electric and magnetic fields are anisotropic , we will use these equations.I have applied on them for newton, einstein,quantum mechanics.If they are anisotropic , they will change as to every direction.If you are interested with them.We will talk on them.
Regards
javaquantron