%0 Journal Article %A Moreno Frías, María Ángeles %A Rosales, José Carlos %T The lattice of ideals of a numerical semigroup and its Frobenius restricted variety associated %D 2023 %@ 2464-713 %U http://hdl.handle.net/10498/35380 %X Let be a numerical semigroup. In this work we show that J (Δ) = {I ∪ {0}: I is an ideal of Δ} is a distributive lattice, which in addition is a Frobenius restricted variety. We give an algorithm which allows us to compute the set Ja(Δ) = {S ∈ J (Δ) : max(Δ\S) = a} for a given a ∈ Δ. As a consequence, we obtain another algorithm that computes all the elements of J (Δ) with a fixed genus. %K Numerical semigroup %K ideal %K Frobenius restricted variety %K embedding dimensio %K Frobenius number %K restricted Frobenius number %K genus %K multiplicity %K Arf numerical semigroup %K saturated semigroup %~ Universidad de Cádiz