Results 41 to 50 of about 12,307,675 (270)

Nonsymmetric solutions of a nonlinear boundary value problem [PDF]

open access: yesCzechoslovak Mathematical Journal, 2014
The paper is concerned with nonlinear second-order ordinary differential equation subject to symmetric nonlinear boundary conditions \[ \begin{aligned} u''(x)&=a| u(x)| ^{p-1}u(x),\,\,\,x\in (-l,l),\\ u'(\pm l)&=\pm | u(\pm l)| ^{q-1}u(\pm l),\end{aligned} \leqno (1) \] where \(a,\,l>0\). Using the shooting method, the author investigates the existence
openaire   +2 more sources

dynoGP: Deep Gaussian Processes for Dynamic System Identification

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces a novel class of deep models for system identification, dynamical deep Gaussian processes, which combine the strengths of data‐driven methods, such as those based on neural network architectures, with the ability to output a probability distribution for uncertainty representation.
Alessio Benavoli   +3 more
wiley   +1 more source

Boundary value problems for hypergenic function vectors

open access: yesJournal of Inequalities and Applications, 2018
This article mainly studies the boundary value problems for hypergenic function vectors in Clifford analysis. Firstly, some properties of hypergenic quasi-Cauchy type integrals are discussed. Then, by the Schauder fixed point theorem the existence of the
Guiling Zhang, Chong Li, Yonghong Xie
doaj   +1 more source

Nonlinear boundary value problems and operators TT∗

open access: yesJournal of Differential Equations, 1978
AbstractWe consider nonlinear boundary value problems of the type Lƒ + Nƒ = 0 for the existence of solutions. It is assumed that L is a 2nth-order linear differential operator in the real Hilbert space S = L2[a, b] which admits a decomposition of the form L = TT∗ where T is an nth-order linear differential operator and N is a nonlinear operator defined
Kannan, R., Locker, John
openaire   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

A boundary value problem for nonlinear differential equation with arbitrary functions

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2017
This article describes a semi-batch nonlinear boundary value problem for differential equations with partial derivatives. The equations containing arbitrary parameters were considered in Whitham G.B.
N. T. Orumbayeva, G. Sabitbekova
doaj   +1 more source

The Galerkin-Implicit Methods for Solving Nonlinear Hyperbolic Boundary Value Problem

open access: yesIbn Al-Haitham Journal for Pure and Applied Sciences, 2021
This paper is concerned with finding the approximation solution (APPS) of a certain type of nonlinear hyperbolic boundary value problem (NOLHYBVP).  The given BVP is written in its discrete (DI) weak form (WEF), and is proved that  it has a unique APPS,
Jamil A. Ali Al-Hawasy   +1 more
doaj   +1 more source

A Simplified Laminar Flow Model for the Pultrusion of Glass Fiber/Polyethylene Terephthalate Commingled Yarns

open access: yesAdvanced Engineering Materials, EarlyView.
A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares   +3 more
wiley   +1 more source

On a boundary value problem for nonlinear functional differential equations

open access: yesBoundary Value Problems, 2005
We consider the problem u′(t)=H(u)(t)+Q(u)(t), u(a)=h(u), where H,Q:C([a,b];R)→L([a,b];R) are, in general, nonlinear continuous operators, H∈ℋabαβ(g0,g1,p0,p1), and h:C([a,b];R)→R is a continuous functional.
Robert Hakl
doaj   +2 more sources

A singular nonlinear boundary-value problem

open access: yesElectronic Journal of Differential Equations, 2000
In this paper we prove an existence and uniqueness theorem for the singular nonlinear boundary-value problem $$displaylines{ (|y'(t)|^py'(t))'+frac{phi}{y^{lambda}(t)}=0 hbox{ in } (0,1),cr y(0)=0=y(1), }$$ where $pgeq 0$, $lambda$ is a positive constant,
Robert M. Houck, Stephen B. Robinson
doaj  

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