In Memory of Professor Francisco Federico Raggi Cárdenas

摘要

Professor Francisco Federico Raggi Cárdenas passed away June 12, 2012, in Mexico City. Professor Raggi was born in Mexico City in 1940. He obtained his undergraduate degree from Universidad Nacional Autónoma de México (UNAM), a master's degree from Harvard, and a doctorate from UNAM. In 1962 he joined the Institute of Mathematics of UNAM, where he worked until his passing. He held visiting positions in universities throughout the world, including institutions in Germany, the United States, Belgium, Canada, Spain, and Italy.