Description
The next lecture in the Extremal seminar will be on October 16 at 12:30
in the Nagyterem of the Rényi Institute.
Andrey Kupavskii: News on Delta-systems.
Abstract
I will discuss a couple of recent results on Delta-systems partly coming out of the survey that I wrote for the Summit 280 volume, and partly based on some recent exciting developments. In particular, I'll discuss stability and supersaturation for extremal set theoretic questions via Delta-systems, exact and approximate results on sunflowers with a fixed core, exact supersaturation in Johnson graphs. I will also touch upon Furedi's conjecture for exponents of Delta-systems and a new approach to Furedi's structural theorem.
Zoom: https://us06web.zoom.us/j/83317580018?pwd=1lh6qG2Kwg93dm6G0nb8wAxIlRUEjF.1
Meeting ID: 833 1758 0018
Passcode: 364380