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相关论文: Fast Parallel Frequency Sweeping Algorithms for Ro…

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The author establishes a new mathematical expression for the Frequency Polygon. He uses it to prove the strong uniform consistency of the Frequency Polygon marginal density estimator for non-anticipative stationary stochastic processes…

统计理论 · 数学 2022-05-25 Salim Lardjane

In this paper, we address stability of parabolic linear Partial Differential Equations (PDEs). We consider PDEs with two spatial variables and spatially dependent polynomial coefficients. We parameterize a class of Lyapunov functionals and…

最优化与控制 · 数学 2015-09-15 Evgeny Meyer , Matthew M. Peet

The paper describes the robust algorithm for linear time-invariant plants under parametric uncertainties, external disturbances and high-frequency noises in measurements. The proposed algorithm allows one to reduce the noise impact on the…

系统与控制 · 计算机科学 2016-12-30 I. B. Furtat , A. N. Nekhoroshikh

We propose a computationally tractable method for the identification of stable canonical discrete-time rational transfer function models, using frequency domain data. The problem is formulated as a global non-convex optimization problem…

系统与控制 · 电气工程与系统科学 2023-12-27 Mohamed Abdalmoaty , Jared Miller , Mingzhou Yin , Roy S. Smith

We show how to compose robust stability tests for uncertain systems modeled as linear fractional representations and affected by various types of dynamic uncertainties. Our results are formulated in terms of linear matrix inequalities and…

最优化与控制 · 数学 2022-10-19 Tobias Holicki , Carsten W. Scherer

In this paper we provide a complete link between dissipation theory and a celebrated result on stability analysis with integral quadratic constraints. This is achieved with a new stability characterization for feedback interconnections…

最优化与控制 · 数学 2018-03-16 Carsten W. Scherer , Joost Veenman

We present the first fast solver for the high-frequency Helmholtz equation that scales optimally in parallel, for a single right-hand side. The L-sweeps approach achieves this scalability by departing from the usual propagation pattern, in…

数值分析 · 数学 2020-08-26 Matthias Taus , Leonardo Zepeda-Núñez , Russell J Hewett , Laurent Demanet

This paper studies the problem of stability of a parameterized delay differential equations (DDE see equation (0.1)). After discretizing the DDE (0.1), we show that the problem can be equivalently casted into a semi-definite programming…

最优化与控制 · 数学 2017-01-03 Dongcai Su

In this article we expand and develop the authors' recent proposed methodology for efficient stochastic superparameterization (SP) algorithms for geophysical turbulence. Geophysical turbulence is characterized by significant intermittent…

计算物理 · 物理学 2013-10-08 Ian Grooms , Andrew J Majda

This paper deals with the exponential stability of systems made of a hyperbolic PDE coupled with an ODE with different time scales, the dynamics of the PDE being much faster than that of the ODE. Such a difference of time scales is modeled…

偏微分方程分析 · 数学 2024-03-12 Gonzalo Arias , Swann Marx , Guilherme Mazanti

The finite-difference time-domain (FDTD) algorithm is a popular numerical method for solving electromagnetic problems. FDTD simulations can suffer from instability due to the explicit nature of the method. Stability enforcement can be…

计算工程、金融与科学 · 计算机科学 2018-12-26 Fadime Bekmambetova , Xinyue Zhang , Piero Triverio

This paper develops a new approach to the estimation of the degree of boundedness or stability of multidimensional nonlinear systems with time-dependent nonperiodic coefficients-an essential task in various engineering and natural science…

动力系统 · 数学 2022-06-16 Mark A. Pinsky

Robustness of linear systems with constant coefficients is considered. There exist methods and tools for analyzing the stability of systems with random or deterministic uncertainties. At the same time, there are no approaches for the…

最优化与控制 · 数学 2020-12-08 Andrey Tremba

Motivated by the idea of imposing paralleling computing on solving stochastic differential equations (SDEs), we introduce a new Domain Decomposition Scheme to solve forward-backward stochastic differential equations (FBSDEs) parallely. We…

数值分析 · 数学 2010-08-03 Minh-Binh Tran

The averaging method combined with the Lyapunov-Schmidt reduction provides sufficient conditions for the existence of periodic solutions of the following class of perturbative $T$-periodic nonautonomous differential equations…

动力系统 · 数学 2022-12-23 Murilo R. Cândido , Douglas D. Novaes

We consider locally stabilized, conforming finite element schemes on completely unstructured simplicial space-time meshes for the numerical solution of parabolic initial-boundary value problems with variable, possibly discontinuous in space…

数值分析 · 数学 2020-03-23 Ulrich Langer , Andreas Schafelner

This paper proposes a decentralized method for regional pole placement, or $\mathcal{D}$-stability, in linearized networked systems. Existing LMI-based methods are hindered by confidentiality concerns regarding proprietary subsystem models…

系统与控制 · 电气工程与系统科学 2026-05-14 Zelin Sun , Shanshan Jiang , Xiaoyu Peng , Xiang Zhu , Xiuqiang He , Hua Geng

In this paper, we propose a phase shift deep neural network (PhaseDNN), which provides a uniform wideband convergence in approximating high frequency functions and solutions of wave equations. The PhaseDNN makes use of the fact that common…

机器学习 · 计算机科学 2019-12-17 Wei Cai , Xiaoguang Li , Lizuo Liu

A neural network is essentially a high-dimensional complex mapping model by adjusting network weights for feature fitting. However, the spectral bias in network training leads to unbearable training epochs for fitting the high-frequency…

信号处理 · 电气工程与系统科学 2021-06-22 Zhi Zeng , Pengpeng Shi , Fulei Ma , Peihan Qi

We present the stability and error analysis of the unified Petrov-Galerkin spectral method, developed in \cite{samiee2017Unified}, for linear fractional partial differential equations with two-sided derivatives and constant coefficients in…

计算工程、金融与科学 · 计算机科学 2019-09-24 Mehdi Samiee , Mohsen Zayernouri , Mark M. Meerschaert