I am Cristian González-Riquelme, from Villarrica, Chile. Since May 2025 I am a Postdoctoral Fellow at Centro de Recerca Matemàtica, under the supervision of Sergey Tikhonov. Before, I was a visiting professor at Departamento de Ingeniería matemática, Universidad de Chile, invited by Claudio Muñoz. Previously, until the end of 2024, I was a postdoctoral researcher at the Instituto Superior Tecnico in Lisbon, working under the supervision of Diogo Oliveira e Silva. During 2022 I was a Posdoctoral fellow at ICTP. I obtained my PhD in mathematics at IMPA in 2021, working under the advice of Emanuel Carneiro . I am mainly interested in harmonic analysis.