A family of accumulation points of non-free rational numbers

Christopher Buyalos, Jayden Thadani, Xinbei Wang +2

For any $q\in \mathbb{R}$, let $A:=\left(\begin{array}{cc}1& 1\\ 0& 1\end{array}\right),B_q:=\left(\begin{array}{cc}1& 0\\ q& 1\end{array}\right)$ and let $G_q:=\…