Results 31 to 40 of about 91,926 (215)

Recovery problem for a singularly perturbed differential equation with an initial jump

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
The article investigates the asymptotic behavior of the solution to reconstructing the boundary conditions and the right-hand side for second-order differential equations with a small parameter at the highest derivative, which have an initial jump ...
D.N. Nurgabyl, S.S. Nazhim
doaj   +1 more source

An exponentially fitted finite difference scheme for a class of singularly perturbed delay differential equations with large delays

open access: yesAin Shams Engineering Journal, 2017
This paper deals with singularly perturbed boundary value problem for a linear second order delay differential equation. It is known that the classical numerical methods are not satisfactory when applied to solve singularly perturbed problems in delay ...
P. Pramod Chakravarthy   +2 more
doaj   +1 more source

An hybrid initial value method for singularly perturbed delay differential equations with interior layers and weak boundary layer

open access: yesAin Shams Engineering Journal, 2018
In this paper, an hybrid initial value method on Shishkin mesh is suggested to solve singularly perturbed boundary value problem for second order ordinary delay differential equation with discontinuous convection coefficient and source term.
V. Subburayan
doaj   +1 more source

Nonexistence of Global Solutions to the Initial Boundary Value Problem for the Singularly Perturbed Sixth-Order Boussinesq-Type Equation

open access: yesJournal of Applied Mathematics, 2014
We are concerned with the singularly perturbed Boussinesq-type equation including the singularly perturbed sixth-order Boussinesq equation, which describes the bidirectional propagation of small amplitude and long capillary-gravity waves on the surface ...
Changming Song, Jina Li, Ran Gao
doaj   +1 more source

Singularly perturbed boundary-focus bifurcations [PDF]

open access: yesJournal of Differential Equations, 2021
We consider smooth systems limiting as $ε\to 0$ to piecewise-smooth (PWS) systems with a boundary-focus (BF) bifurcation. After deriving a suitable local normal form, we study the dynamics for the smooth system with $0 < ε\ll 1$ using a combination of geometric singular perturbation theory and blow-up.
Samuel Jelbart   +2 more
openaire   +4 more sources

Stabilization and the Design of Switching Laws of a Class of Switched Singularly Perturbed Systems via the Composite Control

open access: yesMathematics, 2021
This paper proves that the controller design for switched singularly perturbed systems can be synthesized from the controllers of individual slow–fast subsystems. Under the switching rules of individual slow–fast subsystems, switched singularly perturbed
Chun-Tang Chao   +2 more
doaj   +1 more source

Numerical Solution of Singularly Perturbed Two Parameter Problems using Exponential Splines [PDF]

open access: yes, 2021
In this paper, we have studied a method based on exponential splines for numerical solution of singularly perturbed two parameter boundary value problems. The boundary value problem is solved on a Shishkin mesh by using exponential splines.
Padmaja, P.   +9 more
core   +1 more source

Exponential Collocation Method for Solutions of Singularly Perturbed Delay Differential Equations

open access: yesAbstract and Applied Analysis, 2013
This paper deals with the singularly perturbed delay differential equations under boundary conditions. A numerical approximation based on the exponential functions is proposed to solve the singularly perturbed delay differential equations.
Şuayip Yüzbaşı, Mehmet Sezer
doaj   +1 more source

Input-to-State Stability of Singularly Perturbed Control Systems with Delays

open access: yesJournal of Applied Mathematics, 2013
We study the input-to-state stability of singularly perturbed control systems with delays. By using the generalized Halanay inequality and Lyapunov functions, we derive the input-to-state stability of some classes of linear and nonlinear singularly ...
Yongxiang Zhao, Aiguo Xiao, Li Li
doaj   +1 more source

Complete Controllability Conditions for Linear Singularly Perturbed Time-Invariant Systems with Multiple Delays via Chang-Type Transformation

open access: yesAxioms, 2019
The problem of complete controllability of a linear time-invariant singularly-perturbed system with multiple commensurate non-small delays in the slow state variables is considered.
Olga Tsekhan
doaj   +1 more source

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