TY - GEN AU - García García, Juan Ignacio AU - Marín Aragón, Daniel AU - Vigneron Tenorio, Alberto A4 - Matemáticas PY - 2020 SN - 2227-7390 UR - http://hdl.handle.net/10498/24081 AB - Let S = < a(1), ... , a(p)> be a numerical semigroup, let s is an element of S and let Z(s) be its set of factorizations. The set of lengths is denoted by L(s) = {L(x(1), ... , x(p)) vertical bar (x(1), ... , x(p)) is an element of Z(s)}, where... LA - eng PB - MDPI KW - delta-set; non-unique factorization; numerical monoid; numerical semigroup KW - delta-set KW - non-unique factorization KW - numerical monoid KW - numerical semigroup TI - Union of Sets of Lengths of Numerical Semigroups DO - 10.3390/math8101789 ER -