Professional activities

Served as referee for the following journals: Annals of Mathematics, Acta Mathematica, Duke Mathematical Journal, Geometric and Functional Analysis, Mathematische Annalen, International Mathematics Research Notices, Acta Arithmetica, Journal of Number Theory, Monatshefte für Mathematik, Acta Mathematica Hungarica, Studia Scientiarum Mathematicarum Hungarica

Regular reviewer for the Mathematical Reviews Database of the American Mathematical Society since 2002

Member of the Editorial Board of KöMaL (Mathematical and Physical Journal for Secondary Schools, published by the János Bolyai Mathematical Society and the Loránd Eötvös Physical Society) between 1993 and 1996

Member of the American Mathematical Society since 1996

Member of the János Bolyai Mathematical Society since 1993