Théorie des groupes, Théorie des nombres
New sequences of non-free rational points
Comptes Rendus. Mathématique, Tome 359 (2021) no. 8, pp. 983-989.

We exhibit some new infinite families of rational values of τ, some of them squares of rationals, for which the group or even the semigroup generated by the matrices (1101) and  (10τ1) is not free.

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DOI : 10.5802/crmath.230
Smilga, Ilia 1

1 Institut des Hautes Études Scientifiques et CNRS, 35 route de Chartres, 91440 Bures-sur-Yvette, France.
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Smilga, Ilia. New sequences of non-free rational points. Comptes Rendus. Mathématique, Tome 359 (2021) no. 8, pp. 983-989. doi : 10.5802/crmath.230. http://www.numdam.org/articles/10.5802/crmath.230/

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