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
Mario de la Cueva textbooks across Latin America. Infused with the spirit of the Mexican Revolution of 1910, they conceptualized Mexican labour law as having the protection of workers' rights as its chief purpose. De la Cueva was also a leading advisor in the 1970 revision of the Mexican Labour Code. Mario de la Cueva Mario de la Cueva y de la Rosa (1901-1981) was a Mexican jurist and rector of the Universidad Nacional Autónoma de México (UNAM) in 1940–1942. De la Cueva studied law at the Escuela Nacional de Jurisprudencia of the UNAM, as well as at the Humboldt-Universität in Berlin. From 1929