Zobrazeno 1 - 10
of 4 292
pro vyhledávání: '"Vaes, A"'
Autor:
Donvil, Milan, Vaes, Stefaan
We construct discrete groups $G$ with infinite center that are nevertheless W*-superrigid, meaning that the group von Neumann algebra $L(G)$ fully remembers the group $G$. We obtain these rigidity results both up to isomorphisms and up to virtual iso
Externí odkaz:
http://arxiv.org/abs/2410.13417
We propose a method utilizing physics-informed neural networks (PINNs) to solve Poisson equations that serve as control variates in the computation of transport coefficients via fluctuation formulas, such as the Green--Kubo and generalized Einstein-l
Externí odkaz:
http://arxiv.org/abs/2410.00278
The filtering distribution captures the statistics of the state of a dynamical system from partial and noisy observations. Classical particle filters provably approximate this distribution in quite general settings; however they behave poorly for hig
Externí odkaz:
http://arxiv.org/abs/2409.09800
Autor:
Vaes, Stefaan, Wouters, Lise
Several recent articles in operator algebras make a nontrivial use of the theory of measurable fields of von Neumann algebras $(M_x)_{x \in X}$ and related structures. This includes the associated field $(\text{Aut}\ M_x)_{x \in X}$ of automorphism g
Externí odkaz:
http://arxiv.org/abs/2405.16603
Autor:
Vaes, U
The aim of this note is to revisit propagation of chaos for a Langevin-type interacting particle system used for sampling probability measures. The interacting particle system we consider coincides, in the setting of a log-quadratic target distributi
Externí odkaz:
http://arxiv.org/abs/2404.06456
Autor:
Vaes, Stefaan
We prove that every locally compact second countable group $G$ arises as the outer automorphism group Out $M$ of a II$_1$ factor, which was so far only known for totally disconnected groups, compact groups and a few isolated examples. We obtain this
Externí odkaz:
http://arxiv.org/abs/2403.20299
Autor:
Bailo, Rafael, Barbaro, Alethea, Gomes, Susana N., Riedl, Konstantin, Roith, Tim, Totzeck, Claudia, Vaes, Urbain
Publikováno v:
Journal of Open Source Software (2024) 9(98)
We introduce CBXPy and ConsensusBasedX.jl, Python and Julia implementations of consensus-based interacting particle systems (CBX), which generalise consensus-based optimization methods (CBO) for global, derivative-free optimisation. The raison d'\^et
Externí odkaz:
http://arxiv.org/abs/2403.14470
Estimating the statistics of the state of a dynamical system, from partial and noisy observations, is both mathematically challenging and finds wide application. Furthermore, the applications are of great societal importance, including problems such
Externí odkaz:
http://arxiv.org/abs/2402.01593
Autor:
Donvil, Milan, Vaes, Stefaan
We construct countable groups $G$ with the following new degree of W*-superrigidity: if $L(G)$ is virtually isomorphic, in the sense of admitting a bifinite bimodule, with any other group von Neumann algebra $L(\Lambda)$, then the groups $G$ and $\La
Externí odkaz:
http://arxiv.org/abs/2401.06053
For algorithms based on interacting particle systems that admit a mean-field description, convergence analysis is often more accessible at the mean-field level. In order to transfer convergence results obtained at the mean-field level to the finite e
Externí odkaz:
http://arxiv.org/abs/2312.07373