Results 11 to 20 of about 1,270,686 (341)

Multiple Solutions of Nonlinear Boundary Value Problems of Fractional Order: A New Analytic Iterative Technique

open access: yesEntropy, 2014
The purpose of this paper is to present a new kind of analytical method, the so-called residual power series, to predict and represent the multiplicity of solutions to nonlinear boundary value problems of fractional order.
Omar Abu Arqub   +3 more
doaj   +1 more source

Multiplicity of solutions for Robin problem involving the p(x)-laplacian

open access: yesActa Universitatis Sapientiae: Mathematica, 2021
This paper is concerned with the existence and multiplicity of solutions for p(x)-Laplacian equations with Robin boundary condition. Our technical approach is based on variational methods.
Belaouidel Hassan   +2 more
doaj   +1 more source

An Efficient Spectral Trust-Region Deflation Method for Multiple Solutions [PDF]

open access: yesarXiv, 2023
It is quite common that a nonlinear partial differential equation (PDE) admits multiple distinct solutions and each solution may carry a unique physical meaning. One typical approach for finding multiple solutions is to use the Newton method with different initial guesses that ideally fall into the basins of attraction confining the solutions.
arxiv  

Multiplicity of periodic solutions in bistable equations [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2006
We study the number of periodic solutions in two first-order non-autonomous differential equations, both of which have been used to describe, among other things, the mean magnetization of an Ising magnet in a time-varying external magnetic field.
Berkolaiko, Gregory, Grinfeld, Michael
openaire   +5 more sources

On double phase Kirchhoff problems with singular nonlinearity

open access: yesAdvances in Nonlinear Analysis, 2023
In this paper, we study multiplicity results for double phase problems of Kirchhoff type with right-hand sides that include a parametric singular term and a nonlinear term of subcritical growth.
Arora Rakesh   +3 more
doaj   +1 more source

Multiple solution harvest scheduling [PDF]

open access: yesSilva Fennica, 1999
Application of the Metropolis algorithm for forest harvest scheduling is extended by automating the relative weighting of objective function components. Previous applications of the Metropolis algorithm require the user to specify these weights, which demands substantial trial and error in practice.
openaire   +3 more sources

Superlinear Schrödinger–Kirchhoff type problems involving the fractional p–Laplacian and critical exponent

open access: yesAdvances in Nonlinear Analysis, 2019
This paper concerns the existence and multiplicity of solutions for the Schrődinger–Kirchhoff type problems involving the fractional p–Laplacian and critical exponent.
Xiang Mingqi   +2 more
doaj   +1 more source

On Different Type Solutions of Boundary Value Problems

open access: yesMathematical Modelling and Analysis, 2016
We consider boundary value problems of the type x'' = f(t, x, x'), (∗) x(a) = A, x(b) = B. A solution ξ(t) of the above BVP is said to be of type i if a solution y(t) of the respective equation of variations y'' = fx(t, ξ(t), ξ' (t))y + fx' (t, ξ(t), ξ' (
Maria Dobkevich, Felix Sadyrbaev
doaj   +1 more source

On a problem for a system of two the second order differential equations via the theory of vector fields

open access: yesNonlinear Analysis, 2015
We consider Dirichlet boundary value problem for systems of two second-order differential equations with nonlinear continuous and bounded functions in right-hand sides. We prove the existence of a nontrivial solution to the problem comparing behaviors of
Inara Yermachenko, Felix Sadyrbaev
doaj   +1 more source

Investigating multiple solutions to boundary value problems in constrained minimal and non-minimal SUSY models [PDF]

open access: yes, 2019
We investigate the physical origins of multiple solutions to boundary value problems in the fully constrained MSSM and NMSSM. We derive mathematical criteria that formulate circumstances under which multiple solutions can appear. Finally, we study the validity of the exclusion of the CMSSM in the presence of multiple solutions.
arxiv   +1 more source

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