Results 51 to 60 of about 19,649 (184)

Singularly perturbed elliptic problems with nonautonomous asymptotically linear nonlinearities

, 2014
We consider a class of singularly perturbed elliptic problems with nonautonomous asymptotically linear nonlinearities. The dependence on the spatial coordinates comes from the presence of a potential and of a function representing a saturation effect. We
Ambrosetti, Ambrosetti, Ambrosetti, Bartolo, Benedetta Pellacci, Bonheure, Byeon, Byeon, Byeon, Cerami, Del Pino, Del Pino, Eugenio Montefusco, Floer, Grossi, Jeanjean, Jeanjean, Li, Liliane A. Maia, Lions, Maia, Montefusco, Oh, Oh, Pistoia, Pucci, Rabinowitz, Secchi, Serrin, Serrin, Stuart, Wang   +31 more
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Automatic Adaptive and Targeted Localized Refinement in Transient Structural Dynamic Simulations Using the Multiresolution Finite Wavelet Domain Method

International Journal for Numerical Methods in Engineering, Volume 127, Issue 1, 15 January 2026.
ABSTRACT The multiresolution finite wavelet domain method has been meticulously studied in numerous wave propagation simulations, showing excellent convergence properties and very fast computing times. The multiresolution procedure always starts with the coarse solution, and then finer solutions can be superimposed on the coarse solution until ...
Dimitris Dimitriou, Katerina Samara, Dimitris Saravanos   +2 more
wiley   +1 more source

An Asymptotic-Numerical Hybrid Method for Solving Singularly Perturbed Linear Delay Differential Equations

International Journal of Differential Equations, 2017
In this work, approximations to the solutions of singularly perturbed second-order linear delay differential equations are studied. We firstly use two-term Taylor series expansion for the delayed convection term and obtain a singularly perturbed ordinary
Süleyman Cengizci
doaj   +1 more source

Зведення сингулярно збуреної системи з відхиленням аргументу до системи диференціальних рівнянь [PDF]

, 2011
(uk) Одержані умови, при яких розв’язками сингулярно збуреної системи диференціальних рівнянь з лінійним відхиленням аргументу є розв’язки сингулярно збуреної системи диференціальних рівнянь.(en) The obtained conditions under witch solution of the ...
Ключник, Інна Геннадіївна
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A new H2-norm Lyapunov function for the stability of a singularly perturbed system of two conservation laws

, 2013
International audienceIn this paper a class of singularly perturbed system of conservation laws is considered. The partial differential equations are equipped with boundary conditions which may be studied to derive the exponential stability.
Girard, Antoine, Prieur, Christophe, Tang, Ying   +2 more
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Exploring the Fecal Microbiome Dysbiosis and Its Plasma Metabolome Determinants in Advanced Parkinson's Disease With Motor Complications

CNS Neuroscience &Therapeutics, Volume 32, Issue 1, January 2026.
Our multiomics analysis across three PD cohorts revealed distinct fecal microbiome and plasma metabolome alterations in patients with motor complications (PD‐MC). We identified specific microbial and metabolic biomarkers and uncovered significant correlations between them, providing new insights into PD‐MC pathophysiology. ABSTRACT Background Parkinson'
Shuangjie Qian, Jialong Hou, Xi Xiong, Qi Duan, Tao Jiang, Yi Zheng, Weiwei Quan, Jiaxue Xu, Keke Chen, Jingjing Qian, Hongchang Gao, Chenglong Xie   +11 more
wiley   +1 more source

Singularly Perturbed Control Systems with Noncompact Fast Variable

, 2015
We deal with a singularly perturbed optimal control problem with slow and fast variable depending on a parameter {\epsilon}. We study the asymptotic, as {\epsilon} goes to 0, of the corresponding value functions, and show convergence, in the sense of ...
Nguyen, Thuong, Siconolfi, Antonio
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Singularly perturbed vector fields

Journal of Physics: Conference Series, 2006
A geometrically invariant concept of singularly perturbed systems of ordinary differential equations (singularly perturbed vector fields) is proposed in this paper. Singularly perturbed vector fields can be represented locally as singularly perturbed systems (for corresponding coordinate system choice.
V Bykov, I Goldfarb, V Gol'dshtein
openaire   +1 more source

Roars, Rumbles, and Resonance: A Systematic Review and Meta‐Analysis of Crocodylian Acoustic Signals

Ecology and Evolution, Volume 16, Issue 1, January 2026.
Crocodylians are highly vocal reptiles, possessing a complex acoustic signalling system including vocal and non‐vocal signals used for courtship, mating, mediating conflict, and providing maternal care. Despite this, research on crocodylian acoustic signalling remains infrequent, with methodologies and terminology varying widely across studies.
Sonnie A. Flores, Ross G. Dwyer, Stuart Parsons, Dominique A. Potvin   +3 more
wiley   +1 more source

A boundary jumps phenomenon in the integral boundary value problem for singularly perturbed differential equations

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, A.E. Mirzakulova, M.K. Dauylbayev, K.T. Konisbayeva   +3 more
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