Results 91 to 100 of about 1,700 (198)

Neumaier’s Method For The Solution Of Initial Value Problems For Stiff Ordinary Differential Equations [PDF]

open access: yes, 2005
Compared with standard numerical methods for initial value problems (IVPs) for ordinary differential equations (ODEs), validated methods not only compute a numerical solution to a problem, but also generate a guaranteed bound on the global error ...
Annie Hsiao Chen Yuk
core  

Defect correction techniques for stiff initial value problems [PDF]

open access: yes, 2003
In the talk given by W.Auzinger it is shown that certain modified defect correction algorithms based on techniques like defect interpolation (IPDeC) and defect quadrature (IQDeC) enable the efficient iterative realization of superconvergent collocation ...
Hofstätter, Harald   +3 more
core  

The Finite Element Method for Stiff Ordinary Differential Equations

open access: yesAppliedMath
The paper utilizes the continuous finite element method to solve stiff ordinary differential equations and proves that the linear finite element method and the quadratic finite element method have A-stability in solving autonomous ordinary differential ...
Yanhui Ding, Qiong Tang, Sijia Tang
doaj   +1 more source

Tendler-like Formulas for Stiff ODEs

open access: yes
Abstract This paper proves a convergence result for a general class of methods for the solution of ordinary differential equations (initial value problems). The proof uses standard results from the theory of matrix polynomials. We present new cyclic linear multistep formulas of orders 3 to 9 for stiff equations, which, order by order ...
openaire   +1 more source

On transformations of graded matrices, with applications to stiff ODE's

open access: yesNumerische Mathematik, 1985
The author presents an iterative block LR refining algorithm for graded matrices together with its application to the approximate solution of singularly perturbed systems of ordinary differential equations with several parameters. A block matrix \(A=[A_{ij}]\), \(i,j=1,2,...,m\), where \(A_{ij}\) are \((n_ i\times n_ j)\) matrices, is called a graded ...
openaire   +1 more source

SPIN-ODE: Stiff Physics-Informed Neural ODE for Chemical Reaction Rate Estimation

open access: yes
Estimating rate coefficients from complex chemical reactions is essential for advancing detailed chemistry. However, the stiffness inherent in real-world atmospheric chemistry systems poses severe challenges, leading to training instability and poor convergence, which hinder effective rate coefficient estimation using learning-based approaches.
Boy Michael   +3 more
openaire   +2 more sources

Block backward differentiation alpha-formulas for solving stiff ordinary differential equations [PDF]

open access: yes, 2017
A new family of block methods, namely block backward differentiation alpha-formulas (BBDF-) are developed for solving first and second order stiff ordinary differential equations (ODEs) directly.
Mohd Zawawi, Iskandar Shah
core  

Weighted block Runge-Kutta method for solving stiff ordinary differential equations [PDF]

open access: yes, 2016
In this paper, weighted block Runge-Kutta (WBRK) method is derived for solving stiff ordinary differential equations (ODEs). Implementation of weights on the method and its stability region are shown.
Jana Aksah, Saufianim   +4 more
core  

PEtab.jl: advancing the efficiency and utility of dynamic modelling. [PDF]

open access: yesBioinformatics
Persson S   +7 more
europepmc   +2 more sources

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