Results 51 to 60 of about 6,844 (227)
Higher-Order Energy Expansions and Spike Locations
, 2004 We consider the following singularly perturbed semilinear elliptic problem: (I)\left\{ \begin{array}{l} \epsilon^{2} \Delta u - u + f(u)=0 \ \ \mbox{in} \ \Omega, \\ u>0 \ \ \mbox{in} \ \ \Omega \ \ \mbox{and} \ \frac{\partial u}{\partial \nu}
Winter, M, Wei, J
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Advanced 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
The Asymptotics of Solutions of a Singularly Perturbed Equation with a of Fractional Turning Point
Известия Иркутского государственного университета: Серия "Математика", 2017 We develop the classical Vishik – Lyusternik – Vasil’eva – Imanaliev boundary-value method for constructing uniform asymptotic expansions of solutions of singularly perturbed equations with singular points.
D. A. Tursunov, K. G. Kozhobekov
doaj +1 more source
Singularly Perturbed Lie Bracket Approximation
IEEE Transactions on Automatic Control, 2015 We consider the interconnection of two dynamical systems where one has an input-affine vector field. By employing a singular perturbation and a Lie bracket analysis technique, we show how the trajectories can be approximated by two decoupled systems.
Hans-Bernd Dürr +3 more
openaire +2 more sources
Spikes for the two-dimensional Gierer-Meinhardt system: The weak coupling case
, 2001 In this paper, we rigorously prove the existence and stability of multiple-peaked patterns for the singularly perturbed Gierer-Meinhardt system in a two dimensional domain which are far from spatial homogeneity.
Winter, M, Wei, J
core +1 more source
Love of the Job: What It Is, How to Measure It, and Why It Matters for Work Outcomes
Human Resource Management, Volume 65, Issue 3, Page 925-948, May/June 2026.ABSTRACT Employee retention, motivation, performance, and well‐being remain enduring priorities in human resource management, yet existing constructs such as engagement, commitment, and satisfaction do not fully capture the depth of emotional attachment that some employees feel towards their jobs.
Michelle Inness +8 more
wiley +1 more source
Қарағанды университетінің хабаршысы. Математика сериясы, 2020 The article is devoted to the study of the asymptotic behavior of solving an integral boundary value problem for a third - order linear differential equation with a small parameter for two higher derivatives, provided that the roots of the "additional ...
N.U. Bukanay +3 more
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Chiral Acoustic Phonon and Conservation of Pseudoangular Momentum in α‐Quartz
Advanced Materials, Volume 38, Issue 16, 17 March 2026.Chiral acoustic phonons in α‐quartz are probed via Brillouin light scattering, exploiting the photon's helicity and the crystal's handedness. The interaction obeys a selection rule arising from pseudoangular momentum conservation, enabling direct optical access to phonon chirality in nonsymmorphic crystals.
Changsoo Kim +8 more
wiley +1 more source
Singularly Perturbed Piecewise Deterministic Games [PDF]
SIAM Journal on Control and Optimization, 2008 In this paper we consider a class of hybrid stochastic games with the piecewise open-loop information structure. These games are indexed over a parameter $\varepsilon$ which represents the time scale ratio between the stochastic (jump process) and the deterministic (differential state equation) parts of the dynamical system. We study the limit behavior
Alain Haurie, Francesco Moresino
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Advanced Science, Volume 13, Issue 16, 18 March 2026.This study highlights the effectiveness of Zn‐induced dendrite layers in enhancing the durability of NiMo HER catalysts under dynamic electrochemical conditions. Through in situ dendritic passivation, the Zn‐NiMo catalyst preserves catalytic active sites and mitigates irreversible Ni oxidation/hydroxylation during repeated load fluctuation.
Taeyoung Jeong +2 more
wiley +1 more source