A note on pseudo-symmetric numerical semigroups. Ilhan, Sedat; Suer, Meral — 2009 Acta Universitatis Apulensis. Mathematics - Informatics
On the saturated numerical semigroups Sedat Ilhan; Meral Süer — 2016 Open Mathematics In this study, we characterize all families of saturated numerical semigroups with multiplicity four. We also present some results about invariants of these semigroups.