Avi Wigderson: Some of My Favorite Open Problems on Expanders and Extractors 31st January, 2017 Watch LaterRemove Cinema Mode This video was produced by the Simons Institute, and forms part of the workshop Expanders and Extractors. Combinatorics Expanders Extractor (graph theory) Extremal combinatorics Graph theory You may also like George Shakan: Effective Khovanskii Theorems 8th February, 2021 Lola Thompson: Summing μ(n): an even faster elementary algorithm 12th April, 2021 Marina Iliopoulou: A discrete Kakeya-type inequality 22nd June, 2020 Thomas Bloom: Breaking the logarithmic barrier in Roth’s theorem on progressions 10th July, 2020 Pravesh Kothari: Sum-of-Squares Proofs, Efficient Algorithms, and Applications 18th March, 2024 Doron Puder: Word-Measures on Unitary Groups 2nd February, 2017 In ‘Seminars’Algebra Analysis Category Theory Combinatorics Geometry Logic Mathematical Physics Number Theory Probability Theory Topology