Results 81 to 90 of about 12,351 (211)

Numerical study of self-adjoint singularly perturbed two-point boundary value problems using collocation method with error estimation

open access: yesJournal of Ocean Engineering and Science, 2018
A numerical treatment for self-adjoint singularly perturbed second-order two-point boundary value problems using trigonometric quintic B-splines is presented, which depend on different engineering applications.
Khalid K. Ali   +2 more
doaj   +1 more source

Singularly perturbed boundary value problems

open access: yesDifferential and Integral Equations, 1994
The author considers the system \(-\varepsilon^ 2 u''+g_ 1 (u,v,x,\varepsilon) =0\), \(v''+g_ 2(u,v,x,\varepsilon)=0\), \(v(0)=v(1)=u(0)=u(1)=0\), \(x \in[0,1]\), \(\varepsilon \neq 0\), where \(g_ 1\), \(g_ 2\) are continuous functions specially choosen by the author, \(\varepsilon\) is a small parameter.
openaire   +3 more sources

Parameter uniform numerical method for fourth order singularly perturbed turning point problems exhibiting boundary layers

open access: yesAin Shams Engineering Journal, 2018
In this paper, a numerical method based on Shishkin mesh for a singularly perturbed fourth order differential equation with a turning point exhibiting boundary layers is presented. In this method the problem is transformed into a weakly coupled system of
N. Geetha, A. Tamilselvan
doaj   +1 more source

Singularly Perturbed Dirichlet Problems With Subquadratic Nonlinearities [PDF]

open access: yesTransactions of the American Mathematical Society, 1987
Boundary and interior layer theory is provided for a class of singularly perturbed Dirichlet problems with subquadratic nonlinearities in the derivative terms. The results obtained generalize and extend well-known results on the semilinear problem.
openaire   +1 more source

Extracellular Vesicle Lipids and Their Role in Delivery

open access: yesJournal of Extracellular Biology, Volume 4, Issue 6, June 2025.
ABSTRACT Small extracellular vesicles (sEVs) possess many advantageous characteristics which highlight their potential as nanocarriers for biomedical applications, including the ability to cross the blood brain barrier, improved biocompatibility and exhibit tissue tropism.
Austin Brent   +2 more
wiley   +1 more source

Boundary-layers for a Neumann problem at higher critical exponents

open access: yes, 2016
We consider the Neumann problem $$(P)\qquad - \Delta v + v= v^{q-1} \ \text{in }\ \mathcal{D}, \ v > 0 \ \text{in } \ \mathcal{D},\ \partial_\nu v = 0 \ \text{on } \partial\mathcal{D} ,$$ where $\mathcal{D} $ is an open bounded domain in $\mathbb{R}^N,$ $
Manna, Bhakti B., Pistoia, Angela
core   +1 more source

Uniform asymptotic expansion of the solution for the initial value problem with a piecewise constant argument

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
The article is devoted to the study of a singularly perturbed initial problem for a linear differential equation with a piecewise constant argument second-order for a small parameter.
A.E. Mirzakulova, K.T. Konisbayeva
doaj   +1 more source

Numerical Solution of Singularly Perturbed Delay Differential Equations with Layer Behavior

open access: yesAbstract and Applied Analysis, 2014
We present a numerical method to solve boundary value problems (BVPs) for singularly perturbed differential-difference equations with negative shift. In recent papers, the term negative shift has been used for delay.
F. Ghomanjani   +2 more
doaj   +1 more source

A parameter uniform fitted mesh method for a weakly coupled system of two singularly perturbed convection-diffusion equations [PDF]

open access: yes, 2018
In this paper, a boundary value problem for a singularly perturbed linear system of two second order ordinary differential equations of convection- diffusion type is considered on the interval [0, 1]. The components of the solution of this system exhibit
Kalaiselvan, Saravana Sankar   +2 more
core   +2 more sources

Solving Linear Second-Order Singularly Perturbed Differential Difference Equations via Initial Value Method

open access: yesInternational Journal of Differential Equations, 2019
In this paper, an initial value method for solving a class of linear second-order singularly perturbed differential difference equation containing mixed shifts is proposed.
Wondwosen Gebeyaw Melesse   +2 more
doaj   +1 more source

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