Zobrazeno 1 - 10
of 722
pro vyhledávání: '"Widmayer, P"'
We study the asymptotic behavior of small data solutions to the screened Vlasov-Poisson equation on $\mathbb{R}^d\times\mathbb{R}^d$ near vacuum. We show that for dimensions $d\geq 2$, under mild assumptions on localization (in terms of spatial momen
Externí odkaz:
http://arxiv.org/abs/2410.17978
Autor:
Jurja, Catalina, Widmayer, Klaus
We establish the nonlinear stability on a timescale $O(\varepsilon^{-2})$ of a linearly, stably stratified rest state in the inviscid Boussinesq system on $\mathbb{R}^2$. Here $\varepsilon>0$ denotes the size of an initially sufficiently small, Sobol
Externí odkaz:
http://arxiv.org/abs/2408.15154
We prove nonlinear Landau damping in optimal weighted Gevrey-3 spaces for solutions of the confined Vlasov-Poisson system on $\T^d\times\R^d$ which are small perturbations of homogeneous Penrose-stable equilibria. We also prove the existence of nonli
Externí odkaz:
http://arxiv.org/abs/2405.04473
This article explores the stability of stratified Couette flow in the viscous $3d$ Boussinesq equations. In this system, mixing effects arise from the shearing background, and gravity acts as a restoring force leading to dispersive internal gravity w
Externí odkaz:
http://arxiv.org/abs/2402.15312
Autor:
Rajput, Saurabhsingh, Widmayer, Tim, Shang, Ziyuan, Kechagia, Maria, Sarro, Federica, Sharma, Tushar
With the increasing usage, scale, and complexity of Deep Learning (DL) models, their rapidly growing energy consumption has become a critical concern. Promoting green development and energy awareness at different granularities is the need of the hour
Externí odkaz:
http://arxiv.org/abs/2308.12264
The goal of this article is twofold. First, we investigate the linearized Vlasov-Poisson system around a family of spatially homogeneous equilibria in $\mathbb{R}^3$ (the unconfined setting). Our analysis follows classical strategies from physics and
Externí odkaz:
http://arxiv.org/abs/2305.11166
Accurate and consistent vehicle localization in urban areas is challenging due to the large-scale and complicated environments. In this paper, we propose onlineFGO, a novel time-centric graph-optimization-based localization method that fuses multiple
Externí odkaz:
http://arxiv.org/abs/2211.05400
We consider solutions of the repulsive Vlasov-Poisson system which are a combination of a point charge and a small gas, i.e.\ measures of the form $\delta_{(\mathcal{X}(t),\mathcal{V}(t))}+\mu^2d{\bf x}d{\bf v}$ for some $(\mathcal{X}, \mathcal{V}):\
Externí odkaz:
http://arxiv.org/abs/2207.05644
We prove asymptotic stability of the Poisson homogeneous equilibrium among solutions of the Vlassov-Poisson system in the Euclidean space $\mathbb{R}^3$. More precisely, we show that small, smooth, and localized perturbations of the Poisson equilibri
Externí odkaz:
http://arxiv.org/abs/2205.04540
We construct a class of global, dynamical solutions to the 3d Euler equations near the stationary state given by uniform "rigid body" rotation. These solutions are axisymmetric, of Sobolev regularity, have non-vanishing swirl and scatter linearly, th
Externí odkaz:
http://arxiv.org/abs/2109.01029