Visitors
| Dates | Name | Affiliation |
| 10-17 November 2020 |
Juan Luis Vázquez |
Universidad Autónoma de Madrid - Universidad Complutense de Madrid - Real Academia de Ciencias Exactas, Físicas y Naturales |
| 3-6 November 2020 |
Gregorio Díaz Díaz |
Universidad Complutense de Madrid |
| 23 October 2020 |
Tayomara Ajnara Borsich González |
Universidad Complutense de Madrid |
| 23 October 2020 |
Juan Viu Sos |
Universidad Politécnica de Madrid |
| 23 October 2020 |
Marina Logares Jiménez |
Universidad Complutense de Madrid |
| 22 October 2020 |
Luis G. González Ricardo |
Universidad Carlos III de Madrid |
| 22 October 2020 |
Javier Alejandro Quintero Roba |
Universidad Carlos III de Madrid |
| 22 October 2020 |
Abel Díaz González |
Universidad Carlos III de Madrid |
| 22 October 2020 |
Óscar Domínguez Bonilla |
Universidad Complutense de Madrid |
| 22 October 2020 | Rosalío Reyes Guillermo |
Universidad Carlos III de Madrid |
| 22 October 2020 | Adela Latorre Larrodé | Universidad Politécnica de Madrid |
| 22 October 2020 | Dragan Vukotić | Universidad Autónoma de Madrid |
| 21 October 2020 | Daniel Miguel Treviño |
Universidad Complutense de Madrid |
| 21 October 2020 |
Manuel Mellado Cuerno |
Universidad Autónoma de Madrid |
| 21 October 2020 |
Federico Cantero Morán |
Universidad Autónoma de Madrid |
| 21 October 2020 |
Mario García-Fernández |
Universidad Autónoma de Madrid |
| 4 March 2020 |
Marina Segura Maroto |
Universidad Complutense de Madrid |
| 3 March 2020 |
Miguel García Bravo |
Instituto de Ciencias Matemáticas - Universidad Autónoma de Madrid |
| 2-6 March 2020 |
Filomena Feo |
Università degli Studi di Napoli "Parthenope" |
| 28 February 2020 | Elona Agora | Instituto Argentino de Matemática "Alberto P. Calderón" IAM-CONICET, Argentina |
| 28 February 2020 | Jorge Antezana | Instituto Argentino de Matemática "Alberto P. Calderón" IAM-CONICET, Argentina |
| 18 - 26 February 2020 | José María Martell y Javier Parcet | Instituto de Ciencias Matemáticas |
| 18 February 2020 | Patricia Contreras Tejada | Universidad Complutense de Madrid - Instituto de Ciencias Matemáticas |
| 13 February 2020 |
José M. Conde Alonso | Universidad Autónoma de Madrid |
| 12 February 2020 | Félix del Teso | Universidad Complutense de Madrid |
| 11 February 2020 | Cristina Esteley | Universidad Nacional de Córdoba en Argentina |
| 3 February 2020 | Aris Daniilidis | University of Chile |
| 3 February 2020 | Ángel González | Universidad Politécnica de Madrid |
| 27 January 2020 | Javier León Caballero | Universidad Complutense de Madrid |
| 23 January 2020 | Olli Tapiola | University of Jyväskylä |
| 21 January 2020 | Blanca F. Besoy | Universidad Complutense de Madrid |
| 10 January 2020 | Nuria Martínez Martín | Universidad Complutense de Madrid |