Results 21 to 30 of about 594 (186)

Deep learning-based schemes for singularly perturbed convection-diffusion problems* [PDF]

open access: yesESAIM: Proceedings and Surveys, 2023
Deep learning-based numerical schemes such as Physically Informed Neural Networks (PINNs) have recently emerged as an alternative to classical numerical schemes for solving Partial Differential Equations (PDEs).
Beguinet Adrien   +5 more
doaj   +1 more source

Numerical Treatment of Singularly Perturbed Two-Point Boundary Value Problems by Using Differential Transformation Method

open access: yesDiscrete Dynamics in Nature and Society, 2012
Differential transform method is adopted, for the first time, for solving linear singularly perturbed two-point boundary value problems. Four numerical examples are given to demonstrate the effectiveness of the present method.
Nurettin Doğan   +2 more
doaj   +1 more source

Asymptotic and Pseudoholomorphic Solutions of Singularly Perturbed Differential and Integral Equations in the Lomov’s Regularization Method

open access: yesAxioms, 2019
We consider a singularly perturbed integral equation with weakly and rapidly varying kernels. The work is a continuation of the studies carried out previously, but these were focused solely on rapidly changing kernels.
Abduhafiz Bobodzhanov   +2 more
doaj   +1 more source

Septic B-spline method for second order self-adjoint singularly perturbed boundary-value problems

open access: yesAin Shams Engineering Journal, 2018
In the present paper, we develop a septic B-spline method for solving a self-adjoint singularly perturbed two-point boundary value problem. This method is applied directly to the numerical solution of the problems without reducing its order.
Ram Kishun Lodhi, Hradyesh Kumar Mishra
doaj   +1 more source

Neural Network-Based Adaptive Tracking Control for a Class of Nonlinear Singularly Perturbed Systems

open access: yesIEEE Access, 2019
In this paper, the neural network-based adaptive tracking control method is addressed for a class of multi-input affine unknown nonlinear singularly perturbed systems.
Hao Wang, Chunyu Yang, Song Zhu
doaj   +1 more source

Robust numerical method for singularly perturbed differential equations with large delay

open access: yesDemonstratio Mathematica, 2021
In this paper, a singularly perturbed differential equation with a large delay is considered. The considered problem contains a large delay parameter on the reaction term. The solution of the problem exhibits the interior layer due to the delay parameter
Abdulla Murad Ibrahim   +2 more
doaj   +1 more source

Solving singularly perturbed differential equations in intuitionistic fuzzy environment

open access: yesAin Shams Engineering Journal
In this paper, we introduce and study singularly perturbed intuitionistic fuzzy initial value and boundary value problems. We develop a method based on the intuitionistic fuzzy version of Zadeh's extension principle to compute (α,β)-cuts for solutions to
Selami Bayeğ
doaj   +1 more source

Axiomatic Approach in the Analytic Theory of Singular Perturbations

open access: yesAxioms, 2020
Introduced by S.A. Lomov, the concept of a pseudoanalytic (pseudoholomorphic) solution laid the foundation for the development of the singular perturbation analytical theory.
Margarita Besova, Vasiliy Kachalov
doaj   +1 more source

A singularly perturbed Cauchy problem

open access: yesJournal of Mathematical Analysis and Applications, 1979
Singular perturbations are considered for the initial value problem for second order hyperbolic equations with a small positive parameter multiplying the second order time derivative term. Thus, in contrast to recent work of de Jager and Geel, the reduced equation is of the same order as the original equation but of a different type.
Hsiao, George C., Weinacht, Richard J.
openaire   +1 more source

From Laboratory Performance to Industrial Reality: A Review Fuzing Proton Exchange Membrane Electrolyzer Component Degradation and Impact on Levelized Cost of Hydrogen

open access: yesChemElectroChem, Volume 13, Issue 19, 1 October 2026.
A comprehensive review bridging laboratory innovation with industrial‐scale PEM electrolyzer challenges, focusing on component degradation mechanisms and their direct impact on the levelized cost of hydrogen. This work highlights the critical need for scalable, durable designs and standardized testing to accelerate the green hydrogen economy.
Yuanye Huang   +3 more
wiley   +1 more source

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