covariant index

[kō′ver·ē·ənt ′in‚deks] (mathematics) A tensor index such that, under a transformation of coordinates, the procedure for obtaining a component of the transformed tensor for which this index has value p involves taking a sum over q of the product of a component of the original tensor for which the index has the value q times the partial derivative of the q th original coordinate with respect to the p th transformed coordinate; it is written as a subscript.

单词	covariant index
释义	covariant index covariant index [kō′ver·ē·ənt ′in‚deks] (mathematics) A tensor index such that, under a transformation of coordinates, the procedure for obtaining a component of the transformed tensor for which this index has value p involves taking a sum over q of the product of a component of the original tensor for which the index has the value q times the partial derivative of the q th original coordinate with respect to the p th transformed coordinate; it is written as a subscript.
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