Professor Francisco Ortegón Gallego obtained a PhD in Mathematics from the University of Seville (Spain) in 1988 and, in 1989, from the Université Paris 6 (today part of Sorbonne University, France). The research topics that have most interested him concern problems of mathematical physics and engineering governed by PDEs. He is the author of more than thirty papers. He has participated in more than sixty international conferences as an invited speaker or as chair of the organization.
Professor J. I. García García gained a PhD in Mathematics from the University of Granada in 2001. He currently works at the University of Cádiz. His research focuses on Computational Algebra and he has authored more than forty publications in journals indexed in the Journal Citation Report. He is currently the principal researcher of the project "Study and Applications of Numerical and Affine Semigroups", formed by researchers from the Universities of Almería, Granada, Cádiz, Extremadura, Porto, and Évora.