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Congruence subgroup conjecture for groups generated by root unipotents
Fix a nonzero rational number $q=\tfrac{s}{t}\in\mathbb{Q}\cap(-4,4)$ in lowest terms, with $\gcd(s,t)=1$ . Let $\Gamma_q$ be the group generated by the root unipotents associated t…
Conjectureopenarithmetic-groups congruence-subgroups root-unipotentsarXiv posted 2 days ago

Congruence subgroup conjecture for groups generated by root unipotents