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We tersely review a recently introduced technique to identify systems of two nonlinearly-coupled Ordinary Di{\S}erential Equations (ODEs) solvable by algebraic operations; and we report some specifc examples of this kind, namely systems of…

数学物理 · 物理学 2020-01-08 Francesco Calogero , Farrin Payandeh

Multi-relational learning has received lots of attention from researchers in various research communities. Most existing methods either suffer from superlinear per-iteration cost, or are sensitive to the given ranks. To address both issues,…

机器学习 · 计算机科学 2016-01-19 Fanhua Shang , James Cheng , Hong Cheng

In this article, we discuss sixth-order and seventh-order iterative methods for nonlinear equations. Derivative-based and derivative-free, both categories are presented for said iterative methods. Especially sixth-order derivative-based and…

综合数学 · 数学 2013-08-12 Fayyaz Ahmad , Domingo García-Senz

This paper presents new six solutions for sixth degree polynomial equation in general forms basing on new theorems, where the possibility to calculate the six roots of any sixth degree equation nearly simultaneously. The proposed roots for…

综合数学 · 数学 2022-11-16 Yassine Larbaoui

In this paper we propose a numerical scheme for partitioned systems of index 2 DAEs, such as those arising from nonholonomic mechanical problems and prove the order of a certain class of Runge-Kutta methods we call of Lobatto-type. The…

数值分析 · 数学 2019-01-30 Rodrigo Takuro Sato Martín de Almagro

We propose an algebraic geometric approach for studying rational solutions of first-order algebraic ordinary difference equations. For an autonomous first-order algebraic ordinary difference equations, we give an upper bound for the degrees…

符号计算 · 计算机科学 2019-02-05 Thieu N. Vo , Yi Zhang

Discrete updates of numerical partial differential equations (PDEs) rely on two branches of temporal integration. The first branch is the widely-adopted, traditionally popular approach of the method-of-lines (MOL) formulation, in which…

计算物理 · 物理学 2021-02-03 Youngjun Lee , Dongwook Lee

Global spectral methods offer the potential to compute solutions of partial differential equations numerically to very high accuracy. In this work, we develop a novel global spectral method for linear partial differential equations on cubes…

数值分析 · 数学 2022-10-25 Christoph Strössner , Daniel Kressner

In this paper, we present a new SDC scheme for solving semi-explicit DAEs with the ability to be parallelized in which only the differential equations are numerically integrated is presented. In Shu et al. (2007) it was shown that SDC for…

数值分析 · 数学 2026-01-26 Matthias Bolten , Lisa Wimmer

In the present paper, we introduce a new family of $ \theta-$methods for solving delay differential equations. New methods are developed using a combination of decomposition technique viz. new iterative method proposed by Daftardar Gejji…

数值分析 · 数学 2021-02-16 Yogita Mahatekar , Pallavi S. Scindia

We are interested in the numerical solution of coupled nonlinear partial differential equations (PDEs) in two and three dimensions. Under certain assumptions on the domain, we take advantage of the Kronecker structure arising in standard…

数值分析 · 数学 2021-07-21 Gerhard Kirsten

In this paper, we study special solutions of five autonomous integrable partial difference equations (P$\Delta$Es). More precisely, we show that these P$\Delta$Es admit special solutions that are described by non-autonomous ordinary…

可精确求解与可积系统 · 物理学 2026-05-04 Nobutaka Nakazono

A high-order convergent numerical method for solving linear and non-linear parabolic PDEs is presented. The time-stepping is done via an explicit, singly diagonally implicit Runge-Kutta (ESDIRK) method of order 4 or 5, and for the implicit…

数值分析 · 数学 2018-11-13 Tracy Babb , Per-Gunnar Martinsson , Daniel Appelo

In the paper explicit functional continuous Runge-Kutta and Runge-Kutta-Nystr\"om methods for retarded functional differential equations are considered. New methods for first order equations as well as for second order equations of the…

数值分析 · 数学 2018-06-25 Alexey S. Eremin

This overview is devoted to splitting methods, a class of numerical integrators intended for differential equations that can be subdivided into different problems easier to solve than the original system. Closely connected with this class…

数值分析 · 数学 2024-05-08 Sergio Blanes , Fernando Casas , Ander Murua

In this paper we will study the numerical solution of a discontinuous differential system by a Rosenbrock method. We will also focus on one-sided approach in the context of Rosenbrock schemes, and we will suggest a technique based on the…

数值分析 · 数学 2012-11-19 Marco Berardi

New families of composition methods with processing of order 4 and 6 are presented and analyzed. They are specifically designed to be used for the numerical integration of differential equations whose vector field is separated into three or…

数值分析 · 数学 2024-04-09 Sergio Blanes , Fernando Casas , Alejandro Escorihuela-Tomàs

This paper deals with the index reduction problem for the class of quasi-regular DAE systems. It is shown that any of these systems can be transformed to a generically equivalent first order DAE system consisting of a single purely…

经典分析与常微分方程 · 数学 2010-08-31 Lisi D'Alfonso , Gabriella Jeronimo , François Ollivier , Alexandre Sedoglavic , Pablo Solernó

We develop fast and scalable methods for computing reduced-order nonlinear solutions (RONS). RONS was recently proposed as a framework for reduced-order modeling of time-dependent partial differential equations (PDEs), where the modes…

动力系统 · 数学 2023-03-03 William Anderson , Mohammad Farazmand

In this paper we propose a novel class of methods for high order accurate integration of multirate systems of ordinary differential equation initial-value problems. The proposed methods construct multirate schemes by approximating the…

数值分析 · 数学 2022-12-23 Vu Thai Luan , Rujeko Chinomona , Daniel R. Reynolds