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. 



MINICOURSES 

– Vic Reiner (University of Minnesota) 

“Reflection groups and enumeration” 

– Rekha Thomas (University of Washington) 

“Polynomial optimization” 

– Lauren Williams (University of California Berkeley) 

“Introduction to total positivity and cluster algebras” 

– Günter Ziegler (Freie Universität Berlin) 

“Polytopes - Extremal examples and combinatorial parameters” 

– Viviane Pons (Université Paris-Sud) 

“Mathematics software SageMath Tutorials”. 

CALL FOR TALKS 

To submit a talk please fill out the form in the conference website. 

REGISTRATION 

Registration is now open, please follow the corresponding link in the conference website. 

FINANCIAL SUPPORT 

Currently, limited funds are available to partially support participants from universities in Latin America. More detailed and up-to-date information can be found in the conference website. 

IMPORTANT DATES 

The deadline for registration, applying to financial support and/or proposing a talk is January 28, 2018. 

** For more information please do not hesitate to contact us via E-mail at: ecco2018@googlegroups.com. 

WE LOOK FORWARD TO YOUR PARTICIPATION 

– SCIENTIFIC COMMITTEE 

Carolina Benedetti (Universidad de los Andes) 

Sara Billey (University of Washington) 

Felipe Rincón (University of Oslo) 

Bernd Sturmfels (University of California Berkeley & Max Planck Institute for Mathematics in the Sciences, Leipzig) 

– ORGANIZING COMMITTEE 

Ana Maria Botero (TU Darmstadt) 

Cesar Ceballos (Universität Wien) 

Federico Castillo (University of Kansas) 

Javier de la Cruz (Universidad del Norte) 

Laura Escobar (University of Illinois Urbana-Champaign) 

Karen Florez (Universidad del Norte) 

Rafael González (Universidad Sergio Arboleda) 

Emerson León (Universidad de los Andes) 

Alejandro Morales (University of Massachusetts Amherst) 

Vincent Pilaud (CNRS & École Polytechnique) 

José Samper (University of Miami) 

Camilo Sarmiento (Universität Leipzig) 

Bernardo Uribe (Universidad del Norte) 

Nelly Villamizar (Swansea University) 

SPONSORS 

Universidad del Norte, CIMPA, San Francisco State University, Universidad Sergio Arboleda, Universität Wien, University of Massachusetts Amherst.