The Frobenius problem for generalized repunit numerical semigroups

Manuel B. Branco, Isabel Colaço, Ignacio Ojeda

In this paper, we introduce and study the numerical semigroups generated by $\{a_1,a_2,\dots \}\subset \mathbb{N}$ such that $a_1$ is the repunit number in base $b>1$ of leng…