应用电荷运动规律确定电磁场运动规律

Characteristics of Motion of Electromagnetic Field Can Be Determined by Applying Characteristics of Motion of Electric Charge

运用向量场与微分形式的缩并 (内积 )和外微分运算 ,并依照

Characteristics of motion of electromagnetic field can be determined by characteristics of motion of electric charge. In other word, characteristics of motion of electric charge can determine characteristics of motion of electromagnetic field. The above conclusion is demonstrated in the light of poincare theorem, it is demonstrated by using contraction (interior product) of vector field and differential form as well as operation of exterior differentiation.