| Friday 9 May 2025 | |
| Events for day: Thursday 07 December 2023 |
| 11:00 - 12:30 Lecture Ehrenfeucht-FraÏssé Games in the Uncountable Environment: Where is the Scott Watershed? School MATHEMATICS The Ehrenfeucht-Fraïssé games and their variants are a natural game-theoretic tool for investigating the similarity and dissimilarity between two mathematical structures. Although the study of these games is quite different in finite and infinite model theory, one might ask: if not all natural numbers are equal, why should all infinities be equal? In fact, it is within the framework of countably infinite model theory, not infinite model theory, that these games are often successful! Even at the level of the first uncountable cardinal, the picture is very mixed, but this is not surprising: The Sikorski extension theorem vs. ... 11:00 - 12:00 Theory weekly seminar (TWS) Renormalization group flow and holography. School PARTICLES AND ACCELERATORS Abstract: I will review , in some detail, the various derivations of the exact renormalization group equation. Then if there is time I will discuss the holographic dual of the equation. Meeting Place: Seminar Room, School of Particles and Accelerators, IPM Link to Join Virtually: https://meet.google.com/fnv-dfkk-ghb ... |