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We study Falconer's subadditive pressure function with emphasis on analyticity. We begin by deriving a simple closed form expression for the pressure in the case of diagonal matrices and, by identifying phase transitions with zeros of…

动力系统 · 数学 2015-05-04 Jonathan M. Fraser

This paper introduces a parallel-in-time algorithm for efficient steady-state solution of the eddy current problem. Its main idea is based on the application of the well-known multi-harmonic (or harmonic balance) approach as the coarse…

计算工程、金融与科学 · 计算机科学 2019-11-07 Iryna Kulchytska-Ruchka , Herbert De Gersem , Sebastian Schöps

Boundary integral methods are attractive for solving homogeneous linear constant coefficient elliptic partial differential equations on complex geometries, since they can offer accurate solutions with a computational cost that is linear or…

数值分析 · 数学 2023-01-25 Fredrik Fryklund , Sara Pålsson , Anna-Karin Tornberg

The semi-analytical method obtains the solution for linear/nonlinear ODEs and PDEs in series form. This article presents a novel semi-analytical approach named Daftardar-Jafari method (DJM) to solve integro-partial differential equation…

数值分析 · 数学 2023-03-31 Sanjiv Kumar Bariwal , Gourav Arora , Rajesh Kumar

Using the Carleman linearization technique the continuous iteration of a mapping is studied. Based on the detailed analysis of the Carleman embedding matrix the precise mathematical meaning is given to such notion. The ordinary differential…

数学物理 · 物理学 2007-05-23 P. Gralewicz , K. Kowalski

In this work, we introduce a machine/deep learning methodology to solve parametric integrals. Besides classical machine learning approaches, we consider a differential learning framework that incorporates derivative information during…

机器学习 · 计算机科学 2025-12-15 Álvaro Leitao , Jonatan Ráfales

In the paper, we introduce a matrix method to constructively determine spaces of polynomial solutions (in general, multiplied by exponentials) to a system of constant coefficient linear PDE's with polynomial (multiplied by exponentials)…

经典分析与常微分方程 · 数学 2021-11-16 Victor G. Zakharov

In this article, we report on the efficiency and effectiveness of multiagent reinforcement learning methods (MARL) for the computation of flight delays to resolve congestion problems in the Air Traffic Management (ATM) domain. Specifically,…

In this pedagogical article, we present a simple direct matrix method for analytically computing the Jacobian of nonlinear algebraic equations that arise from the discretization of nonlinear integro-differential equations. The method is…

数值分析 · 数学 2009-05-26 Kevin T. Chu

This paper investigates the problem of solving discrete-time Lyapunov equations (DTLE) over a multi-agent system, where every agent has access to its local information and communicates with its neighbors. To obtain a solution to DTLE, a…

最优化与控制 · 数学 2019-05-01 Xia Jiang , Xianlin Zeng , Jian Sun , Jie Chen

We design an algorithmic framework using matrix exponentials for time-domain simulation of power delivery network (PDN). Our framework can reuse factorized matrices to simulate the large-scale linear PDN system with variable stepsizes. In…

计算工程、金融与科学 · 计算机科学 2016-11-17 Hao Zhuang , Wenjian Yu , Shih-Hung Weng , Ilgweon Kang , Jeng-Hau Lin , Xiang Zhang , Ryan Coutts , Chung-Kuan Cheng

A distributed discrete-time algorithm is proposed for multi-agent networks to achieve a common least squares solution of a group of linear equations, in which each agent only knows some of the equations and is only able to receive…

系统与控制 · 计算机科学 2017-10-02 Xuan Wang , Jingqiu Zhou , Shaoshuai Mou , Martin J. Corless

We develop a numerical method for solving a system of nonlinear integral equations involving two integral terms: at the current time t, one integral is taken from 0 to t, and a different integral is taken from t to infinity. We prove the…

数值分析 · 数学 2008-09-15 S. A. Belbas

Low rank matrix and tensor completion problems are to recover the incomplete two and higher order data by using their low rank structures. The essential problem in the matrix and tensor completion problems is how to improve the efficiency.…

最优化与控制 · 数学 2024-08-23 Quan Yu , Xinzhen Zhang

A method of numerically solving the Maxwell equations is considered for modeling harmonic electromagnetic fields. The vector finite element method makes it possible to obtain a physically consistent discretization of the differential…

数值分析 · 数学 2026-01-05 Andrew V. Terekhov

In this paper, we introduce a novel theoretical framework for multi-task regression, applying random matrix theory to provide precise performance estimations, under high-dimensional, non-Gaussian data distributions. We formulate a…

The numerical solution of an ordinary differential equation can be interpreted as the exact solution of a nearby modified equation. Investigating the behaviour of numerical solutions by analysing the modified equation is known as backward…

数值分析 · 数学 2022-12-12 Robert I McLachlan , Christian Offen

We present a novel algebraic combinatorial view on low-rank matrix completion based on studying relations between a few entries with tools from algebraic geometry and matroid theory. The intrinsic locality of the approach allows for the…

机器学习 · 计算机科学 2014-08-20 Franz J. Király , Louis Theran , Ryota Tomioka

We introduce the method of path-sums which is a tool for exactly evaluating a function of a discrete matrix with possibly non-commuting entries, based on the closed-form resummation of infinite families of terms in the corresponding Taylor…

量子代数 · 数学 2013-05-27 P. -L. Giscard , S. J. Thwaite , D. Jaksch

Composite function minimization captures a wide spectrum of applications in both computer vision and machine learning. It includes bound constrained optimization and cardinality regularized optimization as special cases. This paper proposes…

最优化与控制 · 数学 2016-12-08 Ganzhao Yuan , Wei-Shi Zheng , Bernard Ghanem