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math.NT2025
On the torsion growth in quadratic number fields for elliptic curves defined over the rationals
Sara Arias-de-Reyna, Miguel Pineda-Martín, José M. Tornero
Given an elliptic curve defined over the field of rational numbers, it is known how its torsion subgroup may grow when we make a base change to a quadratic number field. In this pa…
math.CO2025
Onthe computation of the MED closure of a numerical semigroup
Jorge Jiménez Urroz, José M. Tornero
Maximally embedding dimension (MED) numerical semigroups are a wide and interesting family, with some remarkable algebraic and combinatorial properties. Associated to any numerical…