Numerical semigroups from rational matrices II: matricial dimension does not exceed multiplicity
Arsh Chhabra, Stephan Ramon Garcia, Christopher O’Neill · arXiv (Cornell University) · 2024
We continue our study of exponent semigroups of rational matrices. Our main result is that the matricial dimension of a numerical semigroup is at most its multiplicity (the least generator), greatly improving upon the previous upper bound (the conductor). For many numerical semigroups, including all symmetric numerical semigroups, our upper bound is tight.