A Graphic Method for Detecting Multiple Roots Based on Self-Maps of the Hopf Fibration and Nullity Tolerances.Published in:Mathematics (2227-7390), 2021, v. 9, n. 16, p. 1914, doi. 10.3390/math9161914By:Extreminana-Aldana, José Ignacio;Gutiérrez-Jiménez, José Manuel;Hernández-Paricio, Luis Javier;Rivas-Rodríguéz, María TeresaPublication type:Article