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This paper develops methods for proving Lyapunov stability of dynamical systems subject to disturbances with an unknown distribution. We assume only a finite set of disturbance samples is available and that the true online disturbance…

最优化与控制 · 数学 2024-07-15 Kehan Long , Yinzhuang Yi , Jorge Cortes , Nikolay Atanasov

This paper studies the stability and dynamic control of underlay mobile edge networks. First, the stability region for a multiuser edge network is obtained under the assumption of full channel state information. This result provides a…

信息论 · 计算机科学 2018-03-29 Y. Sarikaya , H. Inaltekin , T. Alpcan , J. S. Evans

Efficient and faithful parallel simulation of large asynchronous systems is a challenging computational problem. It requires using the concept of local simulated times and a synchronization scheme. We study the scalability of massively…

统计力学 · 物理学 2007-05-23 G. Korniss , M. A. Novotny , P. A. Rikvold , H. Guclu , Z. Toroczkai

Inspired by edge detection based on the decay behavior of wavelet coefficients, we introduce a (near) linear-time algorithm for detecting the local regularity in non-uniformly sampled multivariate signals. Our approach quantifies regularity…

数值分析 · 数学 2025-07-21 Sara Avesani , Gianluca Giacchi , Michael Multerer

In this paper, we present a novel parallel dimension-independent node positioning algorithm that is capable of generating nodes with variable density, suitable for meshless numerical analysis. A very efficient sequential algorithm based on…

分布式、并行与集群计算 · 计算机科学 2022-02-04 Matjaž Depolli , Jure Slak , Gregor Kosec

A parallel splitting method is proposed for solving systems of coupled monotone inclusions in Hilbert spaces. Convergence is established for a wide class of coupling schemes. Unlike classical alternating algorithms, which are limited to two…

最优化与控制 · 数学 2009-02-26 H. Attouch , L. M. Briceno-Arias , P. L. Combettes

This paper extends algorithms that remove the fixed point bias of decentralized gradient descent to solve the more general problem of distributed optimization over subspace constraints. Leveraging the integral quadratic constraint…

最优化与控制 · 数学 2022-10-31 Dennis J. Marquis , Dany Abou Jaoude , Mazen Farhood , Craig A. Woolsey

This paper presents a pseudo-spectral method for Dynamic Optimization Problems (DOPs) that allows for tight polynomial bounds to be achieved via flexible sub-intervals. The proposed method not only rigorously enforces inequality…

最优化与控制 · 数学 2026-04-08 Eduardo M. G. Vila , Eric C. Kerrigan , Paul Bruce

We introduce a general framework for approximating parabolic Stochastic Partial Differential Equations (SPDEs) based on fluctuation-dissipation balance. Using this approach we formulate Stochastic Discontinuous Galerkin Methods (SDGM). We…

数值分析 · 数学 2023-02-28 Will Pazner , Nathaniel Trask , Paul J. Atzberger

We present a computational method for extreme-scale simulations of incompressible turbulent wall flows at high Reynolds numbers. The numerical algorithm extends a popular method for solving second-order finite differences Poisson/Helmholtz…

流体动力学 · 物理学 2025-08-07 Rafael Diez Sanhueza , Jurriaan Peeters , Pedro Costa

This paper develops a high-accuracy algorithm for time fractional wave problems, which employs a spectral method in the temporal discretization and a finite element method in the spatial discretization. Moreover, stability and convergence…

数值分析 · 数学 2017-08-10 Binjie Li , Hao Luo , Xiaoping Xie

In this paper, a novel parallel hybrid iterative method is proposed for finding a common element of the set of solutions of a system of equilibrium problems, the set of solutions of variational inequalities for inverse strongly monotone…

最优化与控制 · 数学 2015-10-28 Dang Van Hieu

In this paper, a class of high order numerical schemes is proposed to solve the nonlinear parabolic equations with variable coefficients. This method is based on our previous work [10] for convection-diffusion equations, which relies on a…

数值分析 · 数学 2020-12-30 Kaipeng Wang , Andrew Christlieb , Yan Jiang , Mengping Zhang

We consider the method of Reduction of Dissipativity Domain to prove global Lyapunov stability of Discrete Time Recurrent Neural Networks. The standard and advanced criteria for Absolute Stability of these essentially nonlinear systems…

最优化与控制 · 数学 2015-03-09 Nikita Barabanov , Jayant Singh

In this paper we devise an extremely efficient fully dynamic distributed algorithm for maintaining sparse spanners. Our resuls also include the first fully dynamic centralized algorithm for the problem with non-trivial bounds for both…

数据结构与算法 · 计算机科学 2009-09-29 Michael Elkin

In this article, we analyze the stability of the parallel surface problem for semilinear equations driven by the fractional Laplacian. We prove a quantitative stability result that goes beyond that previously obtained in [Cir+23]. Moreover,…

偏微分方程分析 · 数学 2023-08-23 Serena Dipierro , Giorgio Poggesi , Jack Thompson , Enrico Valdinoci

We investigate linear dynamical systems consisting of ordinary differential equations with high dimensionality. Model order reduction yields alternative systems of much lower dimensions. However, a reduced system may be unstable, although…

数值分析 · 数学 2018-08-14 Roland Pulch

We present different computational approaches for the rapid extraction of the signal parameters of discretely sampled damped sinusoidal signals. We compare time- and frequency-domain-based computational approaches in terms of their accuracy…

仪器与探测器 · 物理学 2020-10-23 Jim C. Visschers , Emma Wilson , Thomas Conneely , Andrey Mudrov , Lykourgos Bougas

This paper presents compact, symmetric, and high-order finite difference methods (FDMs) for the variable Poisson equation on a $d$-dimensional hypercube. Our scheme produces a symmetric linear system: an important property that does not…

数值分析 · 数学 2025-11-14 Qiwei Feng , Bin Han , Michelle Michelle , Jiwoon Sim

We propose a decomposition framework for the parallel optimization of the sum of a differentiable function and a (block) separable nonsmooth, convex one. The latter term is typically used to enforce structure in the solution as, for…

分布式、并行与集群计算 · 计算机科学 2013-11-12 Francisco Facchinei , Simone Sagratella , Gesualdo Scutari