Topology of univoque sets in double-base expansions

Vilmos Komornik, Yichang Li, Yuru Zou

Given two real numbers $q_0,q_1>1$ satisfying $q_0+q_1\ge q_0{q}_1$ and two real numbers $d_0\ne d_1$, by a {double-base expansion} of a real number $x$ we mean a sequence $(i_k)\in…