Research visit: March 9-March16, 2024. Pavol Jozef Šafárik University, in Košice, Slovakia, hosted by Professor Jaroslav Šupina. Partially supported by grant 1873058. 

Academic trip: January 27–February 3, 2024. Winter School in Hejnice, Czech Republic. Supported by grant 1873058. 

Research visit: October 16-November 4, 2023. Universidad Nacional de Colombia, sede Medellín, at Medellín, Colombia. Invited by Professor Carlos Mario Parra Londoño. Partially supported by grant P33895. 

Academic trip: April 7-April 12, 2023. Universidad Nacional de Colombia, sede Bogotá. 

Academic trip: November 27-November 29, 2019. Universidad de los Andes, Bogotá, Colombia. 

School: January 27–February 3, 2024: Winter School in Abstract Analysis 2024, section Set Theory & Topology, in Hejnice, Czech Republic. 

Conference: December 18, 2023. Martin's Coloquium, Vienna, Austria.

Workshop: October 24-October 27, 2023. RIMS Set Theory Workshop 2023, Kyoto, Japan, Online.

Conference: December 14-December 17, 2021. Primer Encuentro de Lógica Brasil-Colombia, Universidad Nacional de Colombia, Bogotá, Online.  

Workshop: November 16-November 20, 2020. RIMS Set Theory Workshop 2020: Reals and Topology, Kyoto, Japan, Online. 

Conference: November 27-November 29, 2019. Di Prisco Fest, Bogotá, Colombia. 

Conference: July 17-July 19, 2014. Segunda Escuela Colombiana de Matemáticas. Universidad de Antioquia, Medellín, Colombia.