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p-Numerical Semigroups of Triples from the Three-Term Recurrence Relations
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Version 1
: Received: 23 July 2024 / Approved: 24 July 2024 / Online: 24 July 2024 (14:19:20 CEST)
How to cite: Komatsu, T.; Mu, J. p-Numerical Semigroups of Triples from the Three-Term Recurrence Relations. Preprints 2024, 2024071982. https://doi.org/10.20944/preprints202407.1982.v1 Komatsu, T.; Mu, J. p-Numerical Semigroups of Triples from the Three-Term Recurrence Relations. Preprints 2024, 2024071982. https://doi.org/10.20944/preprints202407.1982.v1
Abstract
Many people, including Horadam, have studied the numbers $W_n$, satisfying the recurrence relation $W_n=u W_{n-1}+v W_{n-2}$ ($n\ge 2$) with $W_0=0$ and $W_1=1$. In this paper, we study the $p$-numerical semigroups of the triple $(W_i,W_{i+2},W_{i+k})$ for integers $i,k(\ge 3)$.
For a nonnegative integer $p$, the $p$-numerical semigroup $S_p$ is defined as the set of integers whose nonnegative integral linear combinations of given positive integers $a_1,a_2,\dots,a_\kappa$ with $\gcd(a_1,a_2,\dots,a_\kappa)=1$ are expressed in more than $p$ ways. When $p=0$, $S=S_0$ is the original numerical semigroup. The largest element and the cardinality of $\mathbb N_0\backslash S_p$ are called the $p$-Frobenius number and the $p$-genus, respectively.
Keywords
Frobenius problem; Frobenius numbers; Horadam numbers; Apéry set
Subject
Computer Science and Mathematics, Mathematics
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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