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Frugal computing is becoming an important topic for environmental reasons. In this context, several techniques have been proposed to reduce the storage of scientific data by dedicated compression methods specially tailored for arrays of…

数据结构与算法 · 计算机科学 2022-03-01 Matthieu Martel

We introduce a numerical method for the numerical solution of the so-called Lur'e matrix equations that arise in balancing-related model reduction and linear-quadratic infinite time horizon optimal control. Based on the fact that the set of…

数值分析 · 数学 2011-01-07 Federico Poloni , Timo Reis

Standard finite difference (SFD) schemes often suffer from limited stability regions, especially when applied in explicit setup to partial differential equations. To address this challenge, this study investigates the efficacy of…

数值分析 · 数学 2025-08-20 Shweta Kumari , Mani Mehra

Caputo-Fabrizio fractional delta derivatives on an arbitrary time scale are presented. When the time scale is chosen to be the set of real numbers, then the Caputo-Fabrizio fractional derivative is recovered. For isolated or partly…

经典分析与常微分方程 · 数学 2018-12-17 Dorota Mozyrska , Delfim F. M. Torres , Malgorzata Wyrwas

A novel unified frequency diverse array (FDA) and spatial data focusing (SDF) approach is proposed to simultaneously overcome time-variance and precision constraints of conventional FDA in geocasting, i.e., spatially confined broadcasting,…

信号处理 · 电气工程与系统科学 2023-02-27 Guylian Molineaux , Francois Horlin , Philippe De Doncker , Julien Sarrazin

We construct a family of embedded pairs for optimal strong stability preserving explicit Runge-Kutta methods of order $2 \leq p \leq 4$ to be used to obtain numerical solution of spatially discretized hyperbolic PDEs. In this construction,…

数值分析 · 数学 2022-05-17 Sidafa Conde , Imre Fekete , John N. Shadid

We study in this paper the linear quadratic optimal control (linear quadratic regulation, LQR for short) for discrete-time complex-valued linear systems, which have shown to have several potential applications in control theory. Firstly, an…

最优化与控制 · 数学 2017-09-18 Bin Zhou

The focus in this work is on interior-point methods for inequality-constrained quadratic programs, and particularly on the system of nonlinear equations to be solved for each value of the barrier parameter. Newton iterations give high…

最优化与控制 · 数学 2024-01-24 David Ek , Anders Forsgren

Sparse principal component analysis (PCA), an important variant of PCA, attempts to find sparse loading vectors when conducting dimension reduction. This paper considers the nonsmooth Riemannian optimization problem associated with the…

最优化与控制 · 数学 2021-09-03 Wen Huang , Ke Wei

To achieve efficient and accurate long-time integration, we propose a fast, accurate, and stable high-order numerical method for solving fractional-in-space reaction-diffusion equations. The proposed method is explicit in nature and…

数值分析 · 数学 2020-03-31 Almushaira Mustafa , Harish Bhatt

We present high order explicit geometric integrators to solve linear-quadratic optimal control problems and $N$-player differential games. These problems are described by a system coupled non-linear differential equations with boundary…

数值分析 · 数学 2013-11-06 Sergio Blanes

This paper mainly investigates the optimal control and stabilization problems for linear discrete-time Markov jump systems. The general case for the finite-horizon optimal controller is considered, where the input weighting matrix in the…

最优化与控制 · 数学 2018-03-15 Chunyan Han , Hongdan Li , Wei Wang , Huanshui Zhang

This paper introduces time-continuous numerical schemes to simulate stochastic differential equations (SDEs) arising in mathematical finance, population dynamics, chemical kinetics, epidemiology, biophysics, and polymeric fluids. These…

概率论 · 数学 2015-03-13 Nawaf Bou-Rabee , Eric Vanden-Eijnden

We solve a linear quadratic optimal control problem for sampled-data systems with stochastic delays. The delays are stochastically determined by the last few delays. The proposed optimal controller can be efficiently computed by iteratively…

最优化与控制 · 数学 2018-05-18 Masashi Wakaiki , Masaki Ogura , Joao P. Hespanha

We propose an autonomous quantum error correction scheme using squeezed cat (SC) code against the dominant error source, excitation loss, in continuous-variable systems. Through reservoir engineering, we show that a structured dissipation…

量子物理 · 物理学 2022-10-25 Qian Xu , Guo Zheng , Yu-Xin Wang , Peter Zoller , Aashish A. Clerk , Liang Jiang

Robust and convergent high-order numerical methods for solving partial differential equations are highly attractive due to their efficiency on modern and next-generation hardware architectures. However, designing such methods for nonlinear…

数值分析 · 数学 2026-03-24 Dougal Stewart , Nathan Lee , Kenneth Duru

When solving the time-dependent radiative transport equation (RTE), implicit time discretization is often employed for its robustness and stability. This results in a sequence of steady-state RTEs with identical cross-sections but varying…

数值分析 · 数学 2026-04-24 Qinchen Song , Lei Zhang , Min Tang

Some recent papers have extended the concept of finite-time stability (FTS) to the context of 2D linear systems, where it has been referred to as finite-region stability (FRS). FRS methodologies make even more sense than the classical FTS…

系统与控制 · 电气工程与系统科学 2024-12-20 Chao Liang , Carlo Cosentino , Alessio Merola , Maria Romano , Francesco Amato

In this paper we propose and analyze an energy stable numerical scheme for the square phase field crystal (SPFC) equation, a gradient flow modeling crystal dynamics at the atomic scale in space but on diffusive scales in time. In…

数值分析 · 数学 2019-10-02 Kelong Cheng , Cheng Wang , Steven M. Wise

In this paper, we revisit multimodal few-shot 3D point cloud semantic segmentation (FS-PCS), identifying a conflict in "Fuse-then-Refine" paradigms: the "Plasticity-Stability Dilemma." In addition, CLIP's inter-class confusion can result in…

计算机视觉与模式识别 · 计算机科学 2026-01-06 Wentao Bian , Fenglei Xu