Primes are Complete for a Class of $N$-Bernoulli Convolutions Spectral Pair
We study the complete number problem for a class of self-similar spectral measures on the real line. For a spectral pair $(μ,Λ)$, a real number $t$ is called complete if $tΛ$ is also a spectrum of $μ$. In this paper we consider the $N$-Bernoulli convolution $μ_{N^r,\mathcal D},\mathcal D=\{0,1,\ldots,N-1\},$ together with its spectrum $Λ_{N^r,N^{r-1}\mathcal D}.$ Our main result establishes that every prime number, apart from certain trivial cases, is complete.
math.CA↗