2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/45032The scaling behavior and fixed points in the evolution of fermion Yukawa couplings and mixing angles are discussed. The relevance of fixed points in determining the top quark mass is described.Talk MSB at the XVI Kazimierz Meeting on Elementary Particle Physics, 24-28 May 1993, Kazimierz, Poland, 4 pages + 2 PS figures included (uuencoded), MAD/PH/798High Energy Physics - PhenomenologyYukawa Coupling Evolution In SUSY GUTStext