The equation for electromagnetic properties of a moving medium is discussed by using electromagnetic field tensor, electromagnetic induction tensor and their dual tensor.
文章从麦克斯韦方程组出发，利用纵向场分量法，详细地推导了强引导磁场下等离子体波导中电磁场分量的表达式。
A dual relationship between stress tensor and displacement grads tensor is presented.
提出了应力张量与位移梯度张量的对偶关系。
The tensor products of double-symmetric coalgebras and the dual relationships between double-symmetric algebras and double-symmetric coalgebras are discussed.
通过研究双对称代数的对偶结构，主要讨论双对称余代数的张量积及双对称代数和双对称余代数之间的对偶关系。
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