Geodesic
Eigenvalue problem for some tensors used in mechanics and a number of essential compatibility conditions for the Saint-Venant deformation
Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 3 (2017), pp. 54-58 
M. U. Nikabadze. Eigenvalue problem for some tensors used in mechanics and a number of essential compatibility conditions for the Saint-Venant deformation. Vestnik Moskovskogo universiteta. Matematika, mehanika, no. 3 (2017), pp. 54-58. http://geodesic.mathdoc.fr/item/VMUMM_2017_3_a7/
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     title = {Eigenvalue problem for some tensors used in mechanics and a number of essential compatibility conditions for the {Saint-Venant} deformation},
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     pages = {54--58},
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     url = {http://geodesic.mathdoc.fr/item/VMUMM_2017_3_a7/}
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Voir la notice de l'article provenant de la source Math-Net.Ru

Several questions related to the problem on the eigenvalues of the tensor $\begin{smallmatrix} \displaystyle{}\\ \overset{\vphantom{p}}{\stackrel{\displaystyle\mathbf A}{\stackrel{\sim}{\sim}}}\\ \end{smallmatrix}\in\mathbb R_4(\Omega)$ with special symmetries are considered. Here $\Omega$ is a certain region of, in general, four-dimensional (three-dimensional) Riemann space. It is proved that in this case a non-degenerate tensor of the fourth rank in the case of a four-dimensional (three-dimensional) Riemann space has no more than six (three) essential components. It is shown that the number of essential conditions of deformation Saint-Venant compatibility less than six.

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