Solving the Greens functions of electromagneticpotential equations in moving medium, the retarded potentials in unlimited space are obtained.
求解了运动媒质中电磁势方程的格林函数，给出了无界空间的推迟势。
2
Although the description of the system involves the electromagneticpotential, the physical properties only depend on the electric and magnetic field-strength.
结果表明，虽然对体系的描述涉及到电磁势，但体系的物理性质只依赖于电场和磁场的强度；
3
Time--harmonic wave equations of electromagneticpotential in chiral media are given, the dyadic Greens function is solved by using dyadic algebraic method, then.