Abstract

This school is the sixth "Encuentro Colombiano de Combinatoria (ECCO)” (Colombian Meeting on Combinatorics). Previous meetings took place in Bogotá (2003, 2008, 2012, and 2014), and in Medellín (2016). The main objective of the school is to bring young mathematicians from the region into close contact with international researchers and leading experts in various fields of combinatorics and its applications. We aim at promoting mathematical research among young students in a motivating environment, and to consolidate a regional research network in combinatorics. The two weeks of the school consist of four minicourses, exercise sessions, a SageMath tutorial, and research talks given by the participants. The program is structured around the students, and therefore we encourage all the participants, independent of their career stage, to take part of the exercise sessions. We are happy to include in the program talks proposed by the participants. ln the event of a full schedule, priority will be given to young mathematicians from the region.