Dear Colleagues, we are organizing a CURSILLO DE FISICA-MATEMATICA: FUNDAMENTOS MATEMATICOS DE LA RELATIVIDAD GENERAL. The school is aimed at undergraduate and graduate students and researchers interested in the topic. The course will consist of a series of morning lectures by the invited speakers. In the afternoon we are planning to have short communications given by participants on various topics in the mathematical theory of general relativity. The morning lectures will be held in English, the afternoon lectures in Spanish or English. The course will take place from DECEMBER, 1st TO DECEMBER, 5th at the UNIVERSIDAD DE LOS ANDES, Bogota. Invited speakers: ================= Sam Dolan (University College, Dublin): "Black Holes and Wave Mechanics" Piero Nicolini (California State University, Fresno): "Relativity, Noncommutative Geometry and Evaporating Black Holes" There will be no registration fee. If you are interested in participating in the cursillo, in giving a talk or in receiving further informations, please send an email to cursillo_gr@uniandes.edu.co or visit https://matematicas.uniandes.edu.co/~cursillo_gr/ To register, please send us an email until November, 21st. For students, limited financial support might be available. Please inform colleagues or students who might also be interested in the school. With best regards, the organizers. Davide Batic, Departamento de Matematicas, Universidad de los Andes, Monika Winklmeier, Departamento de Matematicas, Universidad de los Andes.