Results 11 to 20 of about 25,417,473 (341)

Paired explicit Runge-Kutta schemes for stiff systems of equations [PDF]

open access: yesJournal of Computational Physics, 2019
In this paper we introduce a family of explicit Runge-Kutta methods, referred to as Paired Explicit Runge-Kutta (P-ERK) schemes, that are suitable for the solution of stiff systems of equations.
Brian C. Vermeire
semanticscholar   +2 more sources

Stiff-PINN: Physics-Informed Neural Network for Stiff Chemical Kinetics

open access: yes, 2021
The recently developed physics-informed neural network (PINN) has achieved success in many science and engineering disciplines by encoding physics laws into the loss functions of the neural network such that the network not only conforms to the ...
Zhiyu Shi (11361373)   +9 more
core   +2 more sources

Two-stage single ROW methods with complex coefficients for autonomous systems of ODE [PDF]

open access: yesКомпьютерные исследования и моделирование, 2010
The basic subset of two-stage Rosenbrock schemes with complex coefficients for numerical solution of autonomous systems of ordinary differential equations (ODE) has been considered. Numerical realization of such schemes requires one LU-decomposition, two
Petr Dmitrievich Shirkov   +1 more
doaj   +1 more source

Optimizing the Coefficients of Numerical Differentiation Formulae Using Neural Networks

open access: yesIEEE Access, 2021
The use of a numerical differentiation formula (NDF) is an excellent method for solving stiff ordinary differential equations. However, the NDF method cannot fully adapt to all stiff systems.
Xinyu Yang   +3 more
doaj   +1 more source

A Portable Stiffness Measurement System [PDF]

open access: yesSensors, 2017
A new stiffness measurement method is proposed that utilizes the lateral deformation profile of an object under indentation. The system consists of a force measurement module between a pair of equidistant touch sensing modules. Unique feature of the method is that by adjusting the touch module separation, indenter protrusion, and spring constant of the
Onejae Sul, Eunsuk Choi, Seung-Beck Lee
openaire   +3 more sources

The Numerical Solution of Differential and Differential-Algebraic Systems [PDF]

open access: yesModeling, Identification and Control, 1985
Systems of ordinary differential equations (ODE) or ordinary differential/algebraic equations (DAE) are well-known mathematical models. The numerical solution of such systems are discussed. For (ODE) we mention some available codes and stress the need of
Syvert P. Nørsett
doaj   +1 more source

An Approximate Optimization Method for Solving Stiff Ordinary Differential Equations With Combinational Mutation Strategy of Differential Evolution Algorithm

open access: yesMendel, 2022
This paper examines the implementation of simple combination mutation of differential evolution algorithm for solving stiff ordinary differential equations.
Werry Febrianti   +2 more
doaj   +1 more source

Numerical solution of stiff systems of differential equations arising from chemical reactions [PDF]

open access: yesIranian Journal of Numerical Analysis and Optimization, 2014
Long time integration of large stiff systems of initial value problems, arising from chemical reactions, demands efficient methods with good accuracy and extensive absolute stability region.
Gholamreza Hojjati   +3 more
doaj   +1 more source

Second Derivative Block Hybrid Methods for the Numerical Integration of Differential Systems

open access: yesFractal and Fractional, 2022
The second derivative block hybrid method for the continuous integration of differential systems within the interval of integration was derived. The second derivative block hybrid method maintained the stability properties of the Runge–Kutta methods ...
Dauda Gulibur Yakubu   +3 more
doaj   +1 more source

Rectified deep neural networks overcome the curse of dimensionality for nonsmooth value functions in zero-sum games of nonlinear stiff systems [PDF]

open access: yesAnalysis and Applications, 2019
In this paper, we establish that for a wide class of controlled stochastic differential equations (SDEs) with stiff coefficients, the value functions of corresponding zero-sum games can be represented by a deep artificial neural network (DNN), whose ...
C. Reisinger, Yufei Zhang
semanticscholar   +1 more source

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