| Friday 19 April 2024 | |
| Events for day: Thursday 20 May 2021 |
| 11:00 - 13:00 Commutative Algebra Webinar A Study of Modules over Rings with Prime Characteristic School MATHEMATICS For a commutative Noetherian ring $R$ of prime characteristic with the Frobenius map f, denoted by ${^fhspace{-0.5mm}R}$ the $(R-R)$-bimodule which is $R$ as an additive group and has the structure on the left defined by $f$ and the structure on the right defined by the identity map on $R$. The functor $F(-) = - otimes_R {^fhspace{-0.5mm}R}$, which has been introduced by Peskine-Szpiro, plays an important role in commutative algebra. Note that $F$ preserves projectivity. Marley, in cite{MA14}, has studied rings on which $F$ preserves injectivity and characterized one dimensional rings for which $F$ preserves injective modules ($F$P ... 17:00 - 18:00 IPM Holography virtual seminar Dynamical End-of-the-world Branes in Jackiw-Teitelboim Gravity School PARTICLES AND ACCELERATORS Abstract: Jackiw-Teitelboim gravity with end-of-the-world (EoW) branes has been used to study the black hole information problem. In this talk, I consider dynamical EoW branes by summing over loops of branes in the Euclidean path integral. The UV divergences that arise are treated in the context of effective field theory. The EoW branes make a contribution to the black hole entropy that is consistent with a state-counting interpretation of the entropy. I will also discuss how the effective field theory logic is mirrored in the dual matrix model. |