José Ramón Madrid Padilla

Assistant Professor
Virginia Polytechnic Institute and State University (Virginia Tech)

Biography:

José Ramón Madrid Padilla was born in Honduras, and is the second son of a family of five siblings. The
three oldest are currently assistant professors in Math or Statistics departments at US universities. He
grew up in some rural areas in Honduras, in the regions of Olancho and Santa Barbara. José attended
the Honduran public school system. From a very early age his parents encouraged an interest in
mathematics, playing, logical, strategical, and mathematical games. Family support and motivation
became crucial when in high school José and his siblings discovered the Honduran Mathematical
Olympiads, which took José in a journey that led him to be part of the Honduran team at the International
Mathematical Olympiad in 2009 and 2010, where José received a bronze medal (the first one ever for
Honduras) and a silver medal, respectively. Thanks to this, José was invited to participate in a two
months summer program at Instituto de Matematica Pura e Aplicada (IMPA) in Brazil where, thanks to a
scholarship, he extended his stay for 6 years, obtaining a Bachelor degree at the Universidade Federal do
Rio de Janeiro (UFRJ), and a Master and PhD degree in Mathematics, under the supervision of Emanuel
Carneiro, at IMPA in 2016. After his time in Brazil, José held postdoctoral positions at Aalto University in
Helsinki, Finland in 2016-2017, mentored by Juha Kinnunen, and the International Centre for Theoretical
Physics in Trieste, Italy in 2017-2018. He then became a Hedrick Assistant Adjunct Professor in the
department of Mathematics at the University of California Los Angeles in 2018-2022, mentored by
Terence Tao. After a short period at the University de Geneva, Switzerland in 2022-2023, José became
Assistant Professor in the Department of Mathematics at the Virginia Polytechnic Institute and State
University in August 2023, where he has been since.

Broadly speaking, José’s research focused on the area of harmonic analysis and its connections to
related areas such as combinatorics and number theory. More specifically, he works on problems related
to discrete harmonic analysis and additive combinatorics, regularity of maximal operators on Sobolev and
BV spaces, decoupling inequalities, optimal constants for classical inequalities in Fourier analysis and
analytic inequalities on graphs, Collatz conjecture and Roth type theorems. José was awarded the 2024-
2025 AMS Stefan Bergman fellowship and his research is also supported by the Simon's Foundation.

Jose also enjoys teaching both basic and more specialized courses in mathematics. He has also provided
many training sessions for Honduran high schoolers aiming to represent Honduras at international math
olympiads, collaborating with the Honduran math olympiad committee.

"Hispanic Heritage Month is a time to reflect on the great contributions of many members of our diverse
community to the world of mathematics and beyond. Highlighting our achievements and barriers
overcome, to inspire future generations. Hispanic Heritage Month celebrates, how, many of us, step up,
overcoming many challenges, with motivation, discipline, and determination. Taking advantage of the
richness and strengthens of our culture. Showing that goals can be achieved."