Oren Becker's maths homepage

I am a Research Associate at the University of Cambridge.

E-mail: oren.becker [at] gmail [dot] com

Random character varieties, with Emmanuel Breuillard and Péter Varjú.
- Available upon request.
Testability of relations between permutations, with Alexander Lubotzky and Jonathan Mosheiff.
- FOCS 2021. (arXiv link)
Stability of approximate group actions: uniform and probabilistic, with Michael Chapman.
- preprint. (arXiv link)
Abelian groups are polynomially stable, with Jonathan Mosheiff.
- Int. Math. Res. Not. IMRN, to appear. (journal link, arXiv link)
Group stability and Property (T), with Alexander Lubotzky.
- J. Funct. Anal. 278 (2020), no. 1. (journal link, arXiv link)
Stability and Invariant Random Subgroups, with Alexander Lubotzky and Andreas Thom.
- Duke Math. J. 168 (2019), no. 12, 2207–2234. (journal link, arXiv link)
Symmetric unique neighbor expanders and good LDPC codes.
- Discrete Appl. Math. 211 (2016), 211–216. (journal link, arXiv link)

Spring 2019: I am the lecturer for 80598 Fundamental Concepts in Representation Theory.
Previous teaching (as a teaching assistant): Infinitesimal Calculus 1, Infinitesimal Calculus 2, Fundamental Concepts in Commutative Algebra, Fundamental Concepts in Representation Theory, Mathematics for Chemistry Students, Calculus for Engineering and Science Students.
At the School of Computer Science: I was the lecturer for 67573 Algorithmic Problem Solving (Fall terms, 2012-2015).

I am one of the organizers of the students seminar in group theory at the Hebrew University (Spring 2019).
Together with Michael Chapman, I organized a workshop on superstrong approximation at the Hebrew University (February 2019).
I was one of the organizers of the year-long program Geometric, Topological and Computational Aspects of High-Dimensional Combinatorics at the Israeli Institute for Advanced Study (2017-2018).
In the years 2009-2014, I was the Director of Training and Team Leader for the Israeli Computer Science Olympiad.