In the context of the Brazilian seminar Lógicos em Quarentena, organized by the Sociedade Brasileira de Lógica, I gave the lecture Completeness as (TOPol) reconstruction of (LOGic).
Here are the slides:
For Tertulias Matemáticas (session devoted to the problem of Time in Mathematics and Literature), I gave the presentation Matemáticas y temporalidad: una relación difícil. Una lectura de Florenski y Bergson.
Participación en Tertulias Matemáticas de la Universidad Nacional de Colombia
con brevísima intervención llamada Conjeturas estándar y teoría de modelos.
Interpolation and model theoretic forcing – some new perspectives.
(A lecture in Cantor Meets Robinson – Set theory, model theory and their philosophy. University of Campinas, Brazil, December 2018.)
Model Theoretic Forcing has been interweaved with interpolation theorems in infinitary logic since the early work of Mostowski, Vaught, Harnik and others. I will present some of these historical connections and their effect on Shelah’s much more recent logic 
Seminario Lógica y Geometría (Bogotá, 9/18).
Mi charla: Propagators and Sheaves.
Uno de los ejemplos provenientes de la física cuántica que ha sido objeto de varios análisis modelo-teóricos en años recientes ha sido el propagador cuántico (trabajos de Zilber y de Hirvonen-Hyttinen). Aquí proponemos otro enfoque, más cercano a la lógica de haces métricos, en trabajo conjunto con Maicol Ochoa. En particular, damos una construcción mediante espacios de Schwartz que permite enfocar el comportamiento del operador asociado al propagador como límite de operadores que actúan sobre espacios finito-dimensionales.
At the Max-Planck-Institut für Mathematik in den Naturwissenschafften I gave a lecture on Model Theory and Non-Locality during the Mathematics in Chemistry meeting, in October of 2016.
In the context of WOLLIC 2016 (Workshop on Logic, Language, Information and Computation) at the Benemérita Universidad Autónoma de Puebla I spoke about part of our joint work with Maicol Ochoa, in two formats:
A blackboard lecture for the Oxford Logic seminar on quantum-j. Here, some preparatory notes.
For the CUNY Logic Workshop I gave the lecture The Model Theory of some j-functions, in March of 2016.
At the IPM Institute in Isfahan (Iran) I was invited to give a lecture on Semantics on Sheaves (Topological, Metric, etc.) in November 2015.
Andrés Villaveces 