Results 11 to 20 of about 137,445 (262)

Estimators for alternating nonlinear autoregression

open access: yesJournal of Multivariate Analysis, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ursula U. Müller   +2 more
openaire   +2 more sources

Mild solutions for perturbed evolution equations with infinite state-dependent delay

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2013
In this paper, we give sufficient conditions to get the existence of mild solutions for two classes of first order partial and neutral of perturbed evolution equations by using the nonlinear alternative of Avramescu for contractions operators in Fréchet ...
Djillali Aoued, Selma BAGHLI-BENDIMERAD
doaj   +1 more source

Alternative Legendre Polynomials Method for Nonlinear Fractional Integro-Differential Equations with Weakly Singular Kernel

open access: yesJournal of Mathematics, 2021
In this paper, we present a numerical scheme for finding numerical solution of a class of weakly singular nonlinear fractional integro-differential equations. This method exploits the alternative Legendre polynomials.
Guodong Shi, Yanlei Gong, Mingxu Yi
doaj   +1 more source

Anti-periodic boundary value problems for Caputo-Fabrizio fractional impulsive differential equations [PDF]

open access: yesMathematica Moravica, 2022
In this paper, we shall discuss the existence and uniqueness of solutions for a nonlinear anti-periodic boundary value problem for fractional impulsive differential equations involving a Caputo-Fabrizio fractional derivative of order r ∈ (0, 1).
Benyoub Mohammed, Belghaba Kacem
doaj   +1 more source

Existence of mild solutions for nonlocal perturbed evolution equations with infinite state-dependent delay in Fréchet spaces [PDF]

open access: yesArchives of Control Sciences
In this work, we give sufficient conditions to get the existence of mild solutions for two classes of first-order semilinear functional and neutral functional perturbed evolution equations with infinite state-dependent delay when the conditions are ...
Selma Baghli-Bendimerad, Imane Abibssi
doaj   +1 more source

Using Johnson Schumacher Model for Parameter Estimation of Nonlinear Regression Model [PDF]

open access: yesMaǧallaẗ Al-Buḥūṯ Al-Mālīyyaẗ wa Al-Tiğāriyyaẗ, 2022
In this study, we aim to estimate parameters of nonlinear model by using ordinary least square. This paper used a real data set on exchange rate, inflation, exports, imports, investments, and budget deficit.
maie kamel   +3 more
doaj   +1 more source

Nonlocal controllability of mild solutions for neutral evolution equations with state-dependent delay in Fréchet spaces [PDF]

open access: yesArchives of Control Sciences
In this paper, we prove the controllability of mild solutions of neutral functional evolution equations with state-dependent delay and nonlocal conditions. We establish the non local controllability of mild solutions under certain conditions by combining
Chahrazed Boudefla   +1 more
doaj   +1 more source

Existence results for a multipoint boundary value problem of nonlinear sequential Hadamard fractional differential equations

open access: yesCubo, 2021
In this paper, existence and uniqueness results are established for a nonlinear sequential Hadamard fractional differential equation with multi-point boundary conditions, via Banach and Krasnosel'skiǐ's fixed point theorems and Leray-Schauder nonlinear ...
Bashir Ahmad   +3 more
doaj   +1 more source

Alternative structured spectral gradient algorithms for solving nonlinear least-squares problems

open access: yesHeliyon, 2021
The study of efficient iterative algorithms for addressing nonlinear least-squares (NLS) problems is of great importance. The NLS problems, which belong to a special class of unconstrained optimization problems, are of particular interest because of the ...
Mahmoud Muhammad Yahaya   +3 more
doaj   +1 more source

Nonlinear alternating current responses of graded materials [PDF]

open access: yesPhysical Review E, 2004
When a composite of nonlinear particles suspended in a host medium is subjected to a sinusoidal electric field, the electrical response in the composite will generally consist of alternating current (AC) fields at frequencies of higher-order harmonics.
Huang, J., Gao, L., Yu, K., Gu, G.
openaire   +4 more sources

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