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 lots of math and where to look it up.

He emailed me about a seminar series with talks about various chapters. The email is below. The talks sounds like a great way to learn about some math that is out there!

To complement the book with great accessible theorems, I am also organizing a series of online seminars with accessible talks about great recent theorems. The seminar has an impressive list of speakers 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 seminar webpage https://th21.le.ac.uk/ and my blog https://functor.network/user/3333/entries devoted to great accessible theorems across all of mathematics.