Results 61 to 70 of about 1,301,601 (206)

Relaxation Cycles in a Generalized Neuron Model with Two Delays

open access: yesМоделирование и анализ информационных систем, 2013
A method of modeling the phenomenon of bursting behavior in neural systems based on delay equations is proposed. A singularly perturbed scalar nonlinear differentialdifference equation of Volterra type is a mathematical model of a neuron and a separate ...
S. D. Glyzin, E. A. Marushkina
doaj   +3 more sources

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

Vegetated Canopy Heterogeneity Footprints in the Roughness Sublayer

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 10, 28 May 2026.
Abstract Turbulent flows over horizontally homogeneous rough surfaces are categorized as rough‐wall boundary layer flows, while flows over homogeneous vegetated canopies are better described through a mixing‐layer analogy. At present, numerous studies have investigated canopy density as a transition mechanism between rough‐wall and mixing‐layer‐type ...
Giulia Salmaso, Raúl B. Cal, Marc Calaf
wiley   +1 more source

Asymptotic convergence of the solution for singularly perturbed boundary value problem with boundary jumps

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2018
The article is devoted to study of boundary value problem with boundary jumps for third order linear integro-differential equation with a small parameter at the highest derivatives, provided that additional characteristic equation’s roots have opposite ...
A.E. Mirzakulova   +3 more
doaj   +1 more source

PID‐Like Robust Control of Non‐Minimum Phase Robotic Manipulators

open access: yesInternational Journal of Robust and Nonlinear Control, Volume 36, Issue 8, Page 4490-4503, 25 May 2026.
ABSTRACT This paper proposes an output‐feedback tracking controller for non‐minimum phase nonlinear systems with unknown uncertainties and external disturbances, where not all states are measurable, and the zero dynamics are unstable. The approach combines a backstepping‐based stabilizing state‐feedback law with a cascade extended high‐gain observer ...
Mohammad Al Saaideh   +2 more
wiley   +1 more source

Solutions for the Cahn-Hilliard Equation With Many Boundary Spike Layers [PDF]

open access: yes, 2001
In this paper we construct new classes of stationary solutions for the Cahn-Hilliard equation by a novel approach. One of the results is as follows: Given a positive integer K and a (not necessarily nondegenerate) local minimum point of the mean
Winter, M, Wei, J
core   +1 more source

Numerical treatment of singularly perturbed unsteady Burger-Huxley equation

open access: yesFrontiers in Applied Mathematics and Statistics, 2023
This article deals with the numerical treatment of a singularly perturbed unsteady Burger-Huxley equation. The equation is linearized using the Newton-Raphson-Kantorovich approximation method.
Imiru Takele Daba, Gemechis File Duressa
doaj   +1 more source

Singularly perturbed integral equations

open access: yesJournal of Mathematical Analysis and Applications, 2006
The following singularly perturbed integral equation \[ \varepsilon u_\varepsilon(x) + \int_a^b K(x,y)u_\varepsilon(y)\,dy =f(x), \quad x\in[a,b]\tag{1} \] is considered, which becomes a Fredholm equation of first kind for \(\varepsilon=0\). The kernels \(K_\pm(x,y):=K(x,y)\) for \(\pm(x-y)>0\) are both smooth on \([a,b]\times[a,b]\) and might have ...
openaire   +2 more sources

Hopf fibration and singularly perturbed elliptic equations

open access: yesDiscrete and Continuous Dynamical Systems - S, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ruf, Bernhard, Srikanth, P. N.
openaire   +2 more sources

Inversion of the Impedance Response Towards Physical Parameter Extraction Using Interpretable Machine Learning

open access: yesAdvanced Energy Materials, Volume 16, Issue 20, 27 May 2026.
ABSTRACT Interpreting the impedance response of perovskite solar cells (PSCs) is challenging due to the complex coupling of ionic and electronic motion. While drift‐diffusion (DD) modelling is a reliable method, its mathematical complexity makes directly extracting physical parameters from experimental data infeasible.
Mahmoud Nabil   +4 more
wiley   +1 more source

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