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This paper is dealing with two $L^2$ hypocoercivity methods based on Fourier decomposition and mode-by-mode estimates, with applications to rates of convergence or decay in kinetic equations on the torus and on the whole Euclidean space.…

偏微分方程分析 · 数学 2021-05-27 Anton Arnold , Jean Dolbeault , Christian Schmeiser , Tobias Wöhrer

This paper studies the continuous-time dynamics of primal-dual algorithms for linearly constrained convex optimization problems and provides a quantitative convergence analysis using the Lyapunov functions. With the growing prevalence of…

最优化与控制 · 数学 2026-05-26 Chise Ishii , Yasushi Narushima

This work concerns the internal stabilization of underactuated linear systems of $m$ heat equations in cascade, where the control is placed internally in the first equation only and the diffusion coefficients are distinct. Combining the…

最优化与控制 · 数学 2022-07-21 Constantinos Kitsos , Emilia Fridman

This paper is about the stabilization of a cascade system composed by an infinite-dimensional system, that we suppose to be exponentially stable, and an ordinary differential equation (ODE), that we suppose to be marginally stable. The…

偏微分方程分析 · 数学 2021-11-10 Swann Marx , Daniele Astolfi , Vincent Andrieu

In this paper we study the large-time behavior of classical solutions to the two-species Vlasov-Maxwell-Boltzmann system in the whole space $\R^3$. The existence of global in time nearby Maxwellian solutions is known from [34] in 2006.…

偏微分方程分析 · 数学 2016-02-22 Renjun Duan , Robert M. Strain

Numerical solutions for the optimal feedback stabilization of discrete time dynamical systems is the focus of this paper. Set-theoretic notion of almost everywhere stability introduced by the Lyapunov measure, weaker than conventional…

最优化与控制 · 数学 2017-02-20 Arvind Raghunathan , Umesh Vaidya

The correlation functions near higher-order glass-transition singularities are discussed for a schematic two-component model within the mode-coupling theory for ideal glass-transitions. The correlators decay in leading order like…

软凝聚态物质 · 物理学 2007-05-23 Matthias Sperl

This paper presents an Euler--Lagrange system for a continuous-time model of the accelerated gradient methods in smooth convex optimization and proposes an associated Lyapunov-function-based convergence analysis framework. Recently,…

最优化与控制 · 数学 2024-04-05 Mitsuru Toyoda , Akatsuki Nishioka , Mirai Tanaka

We present a new approach for constructing polytope Lyapunov functions for continuous-time linear switching systems (LSS). This allows us to decide the stability of LSS and to compute the Lyapunov exponent with a good precision in…

动力系统 · 数学 2014-06-24 Nicola Guglielmi , Linda Laglia , Vladimir Protasov

In this paper, the $\mathcal{H}_{2}$ optimal approximation of a $n_{y}\times{n_{u}}$ transfer function $\mathbf{G}(s)$ by a finite dimensional system $\hat{\mathbf{H}}_{d}(s)$ including input/output delays, is addressed. The underlying…

系统与控制 · 计算机科学 2015-11-18 Igor Pontes Duff , Charles Poussot-Vassal , Cédric Seren

For cooperative random linear systems of ordinary differential equations a method is presented of obtaining lower estimates of the top Lyapunov exponent. The proofs are based on applying some polynomial Lyapunov-like function. Known…

动力系统 · 数学 2017-08-21 Janusz Mierczyński

In this work, the multiplier method is extended to obtain a general lower bound of the exponential decay rate in terms of the physical parameters for port-Hamiltonian systems in one space dimension with boundary dissipation. The physical…

偏微分方程分析 · 数学 2023-03-17 Luis A. Mora , Kirsten Morris

An important class of dynamical systems with several practical applications is linear systems with quadratic outputs. These models have the same state equation as standard linear time-invariant systems but differ in their output equations,…

系统与控制 · 电气工程与系统科学 2024-08-13 Umair Zulfiqar , Zhi-Hua Xiao , Qiu-Yan Song , Mohammad Monir Uddin , Victor Sreeram

We study Benamou's domain decomposition algorithm for optimal transport in the entropy regularized setting. The key observation is that the regularized variant converges to the globally optimal solution under very mild assumptions. We prove…

最优化与控制 · 数学 2021-11-23 Mauro Bonafini , Bernhard Schmitzer

In this paper we study ergodic optimization problems for subadditive sequences of functions on a topological dynamical system. We prove that for $t\rightarrow \infty$ any accumulation point of a family of equilibrium states is a maximizing…

动力系统 · 数学 2020-05-15 Reza Mohammadpour

This paper puts forth two new closure models for the proper orthogonal decomposition reduced-order modeling of structurally dominated turbulent flows: the dynamic subgrid-scale model and the variational multiscale model. These models, which…

计算物理 · 物理学 2015-05-28 Zhu Wang , Imran Akhtar , Jeff Borggaard , Traian Iliescu

Inspired by the widespread concept of Lyapunov-Krasovskii functionals of complete type, this article proposes an alternative class of functionals, termed Lyapunov-Krasovskii functionals of robust type. Their construction aims at improving…

系统与控制 · 电气工程与系统科学 2025-11-12 Tessina H. Scholl

In this paper, we propose a general Tikhonov regularized second-order dynamical system with viscous damping, time scaling and extrapolation coefficients for the convex-concave bilinear saddle point problem. By the Lyapunov function…

最优化与控制 · 数学 2026-02-02 Bohan Zhang , Xiaojun Zhang

In this paper, we consider the global regularity and the optimal time decay rate for the 2D isentropic hypo-viscous compressible Navier-Stokes equations. Firstly, we prove that there exists a global strong solution with the small initial…

偏微分方程分析 · 数学 2026-01-13 Chen Liang , Zhaonan Luo , Zhaoyang Yin

This work first gives the global existence and optimal decay rates of solutions to the classical Timoshenko system on the framework of Besov spaces. Due to the \textit{non-symmetric} dissipation, the general theory for dissipative…

偏微分方程分析 · 数学 2015-03-17 Naofumi Mori , Jiang Xu , Shuichi Kawashima