Geodesic
Products of conjugacy classes in $\mathrm{SL}_2(\mathbb{R})$
Trudy Moskovskogo matematičeskogo obŝestva, Trudy Moskovskogo Matematicheskogo Obshchestva, Tome 80 (2019) no. 1, pp. 87-96.

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We compute the product of any $ n$-tuple of conjugacy classes in $ \mathrm {SL}_2(\mathbb{R})$. 
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S. Yu. Orevkov. Products of conjugacy classes in $\mathrm{SL}_2(\mathbb{R})$. Trudy Moskovskogo matematičeskogo obŝestva, Trudy Moskovskogo Matematicheskogo Obshchestva, Tome 80 (2019) no. 1, pp. 87-96. http://geodesic.mathdoc.fr/item/MMO_2019_80_1_a2/

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