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19.78 (2018)

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Does there exist an infinite simple subgroup of $\text{SL}(2, \mathbb{Q})$?

This is a special case of a question which Serge Cantat asked me about “non algebraic” simple subgroups of $\text{GL}(n, \mathbb{C})$. It is also a special case of 15.57.

Contributor: J.-P. Serre

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