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On the saturated numerical semigroups

100%

Ilhan S., Süer M.

Open Mathematics

2016

tom 14

nr 1

827-831

In this study, we characterize all families of saturated numerical semigroups with multiplicity four. We also present some results about invariants of these semigroups.

On the graph labellings arising from phylogenetics

42%

Buczyńska W., Buczyński J., Kubjas K., Michałek M.

Open Mathematics

2013

tom 11

nr 9

1577-1592

We study semigroups of labellings associated to a graph. These generalise the Jukes-Cantor model and phylogenetic toric varieties defined in [Buczynska W., Phylogenetic toric varieties on graphs, J. Algebraic Combin., 2012, 35(3), 421–460]. Our main theorem bounds the degree of the generators of the semigroup by g + 1 when the graph has first Betti number g. Also, we provide a series of examples where the bound is sharp.

Ograniczanie wyników

2 Open Mathematics

1 Buczyńska W.

1 Buczyński J.

1 Ilhan S.

1 Kubjas K.

1 Michałek M.

1 Süer M.

1 2016

1 2013

Wyniki wyszukiwania

On the saturated numerical semigroups

On the graph labellings arising from phylogenetics