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covariant derivative
(redirected from Comma derivative)

   Also found in: Wikipedia 0.02 sec.
covariant derivative [kō′ver·ē·ənt də′riv·əd·iv]
(mathematics)
For a tensor field at a pointPof an affine space, a new tensor field equal to the difference between the derivative of the original field defined in the ordinary manner and the derivative of a field whose value at points close toPare parallel to the value of the original field atPas specified by the affine connection.


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