| Thursday 26 December 2024 | |
| Events for day: Wednesday 16 February 2022 |
| 14:00 - 15:00 Combinatorics and Computing Weekly Seminar Group Equivariant Operators for Machine Learning School MATHEMATICS In this webinar, a general mathematical framework for machine learning will be discussed, where any agent acting on a dataset (such as neural networks) can be formally described as a family of operators, called group equivariant operators, acting on the data. Hence, data is regarded as points of a function space, which makes it possible to learn and optimize operators defined on the data. Indeed, two operators are compared by a pseudo-distance based on persistent homology, which computes topological features at different resolutions. To get more information about the Combinatorics and Computing Weekly Seminar and webinars Zoo ... 14:00 - 15:00 Weekly Seminar Density functional investigation of Graphene fluorination School NANO SCIENCES Fluorographene (FG) is a distinguished member of graphene (Gr) derivatives, which is formed by covering both sides of a Gr sheet with a fluorine monolayer. The applicable properties of FG added to its extraordinary features inherited from pristine graphene, have attracted great interest over the last decade. This system exhibits the widest measured band gap of about 3 eV among all of the Gr derivatives. A major experimental observation in the FG synthesis is that fluorination of the second side of the graphene is much slower than that of the first side and it is significantly accelerated by increasing temperature. These observations suggest t ... 16:30 - 18:00 Geometry and Topology Seminar Cohomology of Dynamical Systems School MATHEMATICS In this talk I will try to address some problems related to cohomology of dynamical systems and its relation to rigidity problems as well as applications to cohomology of groups. [Zoom: https://us02web.zoom.us/j/83021642552?pwd=dmM4SFdxRmI0MWZaTmFNNWphR3RFdz09] [BeST Dynamics Seminars, A joint Beijing-Shenzhen-Tehran mathematical activity] ... 17:30 - 19:30 Mathematical Logic Weekly Seminar Strong Minimal Sets in Differentially Closed Fields-Equations of Poizat and Lienard Type School MATHEMATICS The first part of the talk will be a survey on the model theory of differentially closed fields and the strongly minimal sets found there. In the second part of the talk I will discuss recent work with Freitag, Jaoui and Nagloo on a family of equations introduced by Poizat and applications to certain Lienard equations. Zoom information: https://us06web.zoom.us/j/82946718173?pwd=eUp3cUM5UkVmUzYvTHdvK0FTbnJqUT09 Meeting ID: 829 4671 8173 Passcode: 210810 ... |