Results 41 to 50 of about 1,700 (198)

A uniform quantitative stiff stability estimate for BDF schemes [PDF]

open access: yesOpuscula Mathematica, 2006
The concepts of stability regions, \(A\)- and \(A(\alpha)\)-stability - albeit based on scalar models - turned out to be essential for the identification of implicit methods suitable for the integration of stiff ODEs.
Winfried Auzinger, Wolfgang Herfort
doaj  

Analysis of the Enright-Kamel partitioning method for stiff ODEs [PDF]

open access: yes, 1989
The use of implicit formulae in the solution of stiff ODEs gives rise to systems of nonlinear equations which are usually solved iteratively by a modified Newton scheme. The linear algebra costs associated with such schemes may form a substantial part of
Higham, D.J.
core   +1 more source

A Continuous Formulation of A(α)-Stable Second Derivative Linear Multistep Methods for Stiff IVPs in ODEs

open access: yesJournal of Algorithms & Computational Technology, 2012
This paper considers family of A(α)-stable second derivative linear multistep methods of order p = k + 3 for step number k ≥ 15 for the solution of stiff IVPs in ODEs. The methods are demonstrated to be A(α)-stable for k ≥ 13.
R. I. Okuonghae, M. N. O. Ikhile
doaj   +1 more source

Super class of implicit extended backward differentiation formulae for the numerical integration of stiff initial value problems [PDF]

open access: yesComputational Algorithms and Numerical Dimensions
An implicit Superclass of non-block Extended Backward Differentiation Formulae (SEBDF) for the numerical integration of first-order stiff system of Ordinary Differential Equations (ODEs) in Initial Value Problems (IVPs) with optimal stability properties ...
Hamisu Musa, Buhari Alhassan
doaj   +1 more source

Stability analysis of a diagonally implicit scheme of block backward differentiation formula for stiff pharmacokinetics models

open access: yesAdvances in Difference Equations, 2020
In this paper, we analyze the criteria for the stability of a method suited to the ordinary differential equations models. The relevant proof that the method satisfies the condition of stiff stability is also provided.
Hazizah Mohd Ijam   +3 more
doaj   +1 more source

Explicit time-stepping for stiff ODEs [PDF]

open access: yes, 2003
We present a new strategy for solving stiff ODEs with explicit methods. By adaptively taking a small number of stabilizing small explicit time steps when necessary, a stiff ODE system can be stabilized enough to allow for time steps much larger than what
Johnson, Claes,   +2 more
core  

CNN‐based ultrafast solver of stiff ODEs and PDEs for enabling realtime Computational Engineering [PDF]

open access: yes, 2011
PurposeThis paper seeks to develop, propose and validate, through a series of presentable examples, a comprehensive high‐precision and ultra‐fast computing concept for solving stiff ordinary differential equations (ODEs) and partial differential ...
K. Kyamakya, J.C. Chedjou
core   +1 more source

On a Variational Method for Stiff Differential Equations Arising from Chemistry Kinetics

open access: yesMathematics, 2019
For the approximation of stiff systems of ODEs arising from chemistry kinetics, implicit integrators emerge as good candidates. This paper proposes a variational approach for this type of systems.
Sergio Amat   +2 more
doaj   +1 more source

A Special Family of LMM with Two Hybrid Points for Stiff ODEs [PDF]

open access: yes, 2013
Hybrid methods with one or more off-step points give better stabilitycharacteristics and higher order than the conventional linear multistep methods (LMM).
Nwachukwu, GC
core   +1 more source

A piecewise-linearized algorithm based on the Krylov subspace for solving stiff ODEs [PDF]

open access: yes, 2011
Numerical methods for solving Ordinary Differential Equations (ODEs) have received considerable attention in recent years. In this paper a piecewise-linearized algorithm based on Krylov subspaces for solving Initial Value Problems (IVPs) is proposed ...
Ruiz Martínez, Pedro Antonio   +10 more
core   +1 more source

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