Mario Valencia Pabon will be in Argentina from December 3rd, to December 18th, 2018. The first week (from the 3rd to the 9th December), will be at Rosario, working with Pablo Torres. From the 10th to the 12th, will participate as invited speaker at the “IX Seminario de la Red Latinoamericana de Optimización Discreta y Grafos” (SODYG 2018), organised by Martin Safe (Universidad del Sur) at Bahía Blanca. Finally, from the 13th to the 18th, will be at Buenos Aires working with Flavia Bonomo, Luciano Grippo and Nina Pardal.