New dimension bounds for $αβ$ sets

In this paper we obtain new lower bounds for the upper box dimension of $αβ$ sets. As a corollary of our main result, we show that if $α$ is not a Liouville number and $β$ is a Liouville number, then the upper box dimension of any $αβ$ set is $1$. We also use our dimension bounds to obtain new results on affine embeddings of self-similar sets.

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