Abstract
If a subspace of a Riemannian manifold is varied the tensors associated with the subspace also vary. The appropriate concept of tensorial variation is introduced and the tensorial variations of several tensors are calculated. A general formula for the variation of an integral is given. Applications are made to the mean curvature integrals of hypersurfaces.
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Armsen, M. Variational theory of Riemannian subspaces. Manuscripta Math 26, 315–329 (1978). https://doi.org/10.1007/BF01167728
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DOI: https://doi.org/10.1007/BF01167728