Péter Varjú

Péter Varjú is a Hungarian mathematician who works in harmonic analysis and ergodic theory. He is a professor at the University of Cambridge.

Varjú was born in Szeged. He did his undergraduate studies at the University of Szeged^[1] and his doctoral studies at Princeton University, where he defended his thesis Random walks and spectral gaps in linear groups in 2011 under the supervision of Jean Bourgain.^[2]

He works at the University of Cambridge, as a professor in the Department of Pure Mathematics and Mathematical Statistics.^[3]

Varjú studied the construction of expander graphs with number-theoretic methods involving arithmetic groups^[A] and questions about the uniform distribution of random walks in arithmetic groups with Bourgain^[B] and in Euclidean isometries with Elon Lindenstrauss.^[C][D]

Varjú received the 2016 EMS Prize^[4] and the 2018 Whitehead Prize.^[5] As a graduate student at Princeton, he was also a Fulbright Fellow.^[1]

B.	Bourgain, Jean; Varjú, Péter P. (2012), "Expansion in ${\displaystyle SL_{d}(\mathbb {Z} /q\mathbb {Z} )}$, ${\displaystyle q}$ arbitrary", Inventiones Mathematicae, 188 (1): 151–173, arXiv:1006.3365, doi:10.1007/s00222-011-0345-4, MR 2897695

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