On the bifurcation set of unique expansions

Charlene Kalle, Derong Kong, Wenxia Li +1

Given a positive integer $M$, for $q\in (1,M+1]$ let ${\mathcal{U}}_q$ be the set of $x\in [0,M/(q-1)]$ having a unique $q$-expansion with the digit set $\{0,1,\dots ,M\}$, and l…