Santiago López de Medrano Santiago López de Medrano Santiago López de Medrano Sánchez (born October 15, 1942 in Mexico City) is a Mexican mathematician, who works as a researcher at the National Autonomous University of Mexico (UNAM). His research has concerned knot theory, singularity theory, biomathematics, and differential topology. López de Medrano did his undergraduate studies at UNAM, and earned his Ph.D. from Princeton University in 1969, under the supervision of William Browder. He returned to UNAM as a researcher and professor in 1968, and was president of the Mexican Mathematical Society from 1969 to 1973. López de Medrano presented his work on knot
José Luis Trejo hired by Necaxa after manager Hugo Sánchez left to coach the Mexico national team. He was fired from UAG Tecos in 2008. He was next employed with the Liga MX Mexican Primera División club San Luis. On 4 September 2013, Trejo became the new manager of UNAM. José Luis Trejo José Luis Trejo Montoya, (born August 4, 1951) is a Mexican football coach. Trejo played club football for Atlético Español and Tecos. Trejo has coached Toros de Neza, Cruz Azul, Chiapas, C.F. Pachuca, UANL Tigres, Monarcas Morelia and Necaxa. He had managed more than 300 First Division matches. Trejo took