3 papers
math.NT2026
Representability of systems of proportionally modular numerical semigroups
Zsolt Baja, Tamás László, Zsuzsa Nagy
In this short note we prove that every system of proportionally modular numerical semigroups is representable by a canonical equivariant resolution of a weighted homogeneous surfac…
math.AG2025
Delta invariant of -Cartier curve germs and the genus of representable numerical semigroups
Zsolt Baja, Tamás László, András Némethi
In this article, first we give two formulae for the delta invariant of a complex curve singularity that can be embedded as a -Cartier divisor in a normal surface singu…
math.CO2022
Towards characterizing the 2-Ramsey equations of the form
Zsolt Baja, Dániel Dobák, Benedek Kovács +2
In this paper, we study a Ramsey-type problem for equations of the form . We show that if certain technical assumptions hold, then any 2-colouring of the positive integ…