电磁场的不变量的求证方法讨论  

A discussion on the methods for determining the invariant of the electromagnetic field

作　　者：刘裕光[1] 张宝峰[1] 

机构地区：[1]天津大学理学院,天津300072

出　　处：《大学物理》2003年第2期25-26,37,共3页College Physics

摘　　要：用几种不同的方法对电磁场的不变量进行了求证和讨论 。Several methods for solving and proving the invariant of the electromagnetic field are given and discussed. It is pointed out that the invariant determined from different methods can written over a certain type of expression, i. e. the assembly made up of the elements of the four dimensional covariant tensor.

关 键 词：求证方法 电磁场 四维协变张量 洛伦兹不变量 电动力学 

分 类 号：O442[理学—电磁学]