Geodesic
The matrix Euler–Fermat theorem
Izvestiya. Mathematics, Tome 68 (2004) no. 6, pp. 1119-1128 
V. I. Arnol'd. The matrix Euler–Fermat theorem. Izvestiya. Mathematics, Tome 68 (2004) no. 6, pp. 1119-1128. http://geodesic.mathdoc.fr/item/IM2_2004_68_6_a1/
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     title = {The matrix {Euler{\textendash}Fermat} theorem},
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     url = {http://geodesic.mathdoc.fr/item/IM2_2004_68_6_a1/}
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Voir la notice de l'article provenant de la source Math-Net.Ru

We prove many congruences for binomial and multinomial coefficients as well as for the coefficients of the Girard–Newton formula in the theory of symmetric functions. These congruences also imply congruences (modulo powers of primes) for the traces of various powers of matrices with integer elements. We thus have an extension of the matrix Fermat theorem similar to Euler's extension of the numerical little Fermat theorem.

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