Online Talks on Accessible Theorems!

Bogdan Grechuk has written a book Landscapes of 21st Century Mathematics that came out in 2021. There is a revised version coming out soon. The theme is that he takes theorems whose statements can be understood and describes them in 5–10 pages. No proofs, but lots of context and, most importantly, if you read all 800 pages of it you know about many areas of mathematics and where to look things up. He is organizing a series of online seminars with accessible talks about great recent theorems featuring world-renowned mathematicians:

• January 28, 2026. Prof. Boaz Klartag. “Sphere packing.” join the talk here.
• February 11, 2026. Prof. Avi Wigderson. “Expander graphs.” join the talk here.
• March 4, 2026. Prof. Assaf Naor. “Sparsest cut.”
• April 2026. Prof. Harald Helfgott. Date and topic to be decided.
• May 20, 2026. Prof. Ben Green. “The polynomial Freiman–Ruzsa conjecture.”

More details can be found on the seminar webpage and the blog devoted to great accessible theorems across mathematics.