1. Departamento de Matemáticas , Universidad del Norte , Barranquilla , Colombia isgutier@uninorte.edu.co
Abstract:
Let 𝔉 =LF(F) and ? =LF(H) be two locally defined formations such that 𝔉 ? ?. In this article, we will find necessary conditions to have H(p) ? f*(p) for a fixed prime number p.