TY - GEN AU - Moreno Frías, María Ángeles AU - Nicola, J AU - Pardo Espino, Enrique AU - Thomas, H A4 - Matemáticas PY - 2009 SN - 0008-4395 UR - http://hdl.handle.net/10498/35327 AB - We say that a numerical semigroup is d-squashed if it can be written in the form S =1/N(a1, . . . , ad) ∩ Z for N, a1, . . . , ad positive integers with gcd(a1, . . . , ad) = 1. Rosales and Urbano have shown that a numerical semigroup is 2-squashed... LA - eng PB - Cambridge KW - Numerical Semigroups KW - d-squashed semigroups KW - proportionally modular numerical semigroup TI - Numerical semigroups that are not intersections of d-squashed semigroups DO - 10.4153/CMB-2009-059-4 ER -