July 2025, contributed talk: Coincidence of division fields of an elliptic curve defined over a number field, in 33èmes Journées Arithmétiques, Belval Université, Luxembourg. Slides here : slides_ja_luxembourg.pdf

June 2025, invited talk: Coincidence of division fields of an elliptic curve defined over a number field, in Arithmetic Geometry Cryptographie and Coding Theory (AGC2T), CIRM, Marseille, France. Video : https://youtu.be/2UBsri7nTBs?feature=shared.

July 2024, invited talk: Coincidence of division fields of an elliptic curve defined over a number field, in European Congress of Mathematics (9ECM), Universidad de Sevilla, Sevilla, Spain.

April 2023, invited talk: Coincidence of division fields of an elliptic curve defined over a number field, in Density problems in Arithmetic, CIRM, Marseille, France.

February 2024, contributed talk: Vertical coincidence of an elliptic curve defined over a number field, in Seminari de Teoria de Nombres de Barcelona, Universitat de Barcelona, Barcelona, Spain.

January 2023, contributed talk: Coincidence of an elliptic curve defined over a number field, in Seminari de Teoria de Nombres de Barcelona, Universitat de Barcelona, Barcelona, Spain.

January 2022, contributed talk: Valuation of coefficients of polynomials geometrically realizing GL(2,Z/nZ), in Seminari de Teoria de Nombres de Barcelona, Universitat de Barcelona, Barcelona, Spain.