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
Clausura 2016 Copa MX the 2015-16 CONCACAF Champions League (América, Querétaro, Santos Laguna and UANL) or the 2016 Copa Libertadores (UNAM, Toluca, Puebla). The top 13 Ascenso MX in the Apertura 2015 classification table also qualified to the tournament. If two or more clubs are equal on points on completion of the group matches, the following criteria are applied to determine the rankings: Every group is composed of four clubs, two from Liga MX and two from Ascenso MX. except for Group 6 which only has one Liga MX club. Instead of a traditional robin-round schedule, the clubs will play in three two-legged "rounds",