Results 21 to 30 of about 380 (109)
Open Mathematics, 2022 In this paper, we use the shooting method to study the solvability of the boundary value problem of differential equations with sign-changing weight function: u″(t)+(λa+(t)−μa−(t))g(u)=0 ...
Yue Xu, Xiaoling Han
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Demonstratio Mathematica, 2022 By using the theory of fixed point index and spectral theory of linear operators, we study the existence of positive solutions for Riemann-Liouville fractional differential equations at resonance. Our approach will provide some new ideas for the study of
Wang Youyu, Huang Yue, Li Xianfei
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A Higher Order Nonresonant p-Laplacian Boundary Value Problem on an Unbounded Domain
Abstract and Applied AnalysisMSC2010 Classification: 34B10 ...
S. A. Iyase, O. F. Imaga
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International Journal of Differential Equations, Volume 2025, Issue 1, 2025.In this paper, we study the following second order scalar differential inclusion: bzxΦz′x′∈Azx+Gx,zx,z′x a.e on Λ=0,α under nonlinear general boundary conditions incorporating a large number of boundary problems including Dirichlet, Neumann, Neumann–Steklov, Sturm–Liouville, and periodic problems.
Droh Arsène Béhi +3 more
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Three periodic solutions to an eigenvalue problem for a class of second‐order Hamiltonian systems
Abstract and Applied Analysis, Volume 2003, Issue 18, Page 1037-1045, 2003., 2003 We establish a multiplicity result to an eigenvalue problem related to second‐order Hamiltonian systems. Under new assumptions, we prove the existence of an open interval of positive eigenvalues in which the problem admits three distinct periodic solutions.
Giuseppe Cordaro
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2‐Conformal Vector Fields on the Model Sol Space and Hyperbolic Ricci Solitons
Journal of Mathematics, Volume 2025, Issue 1, 2025.In this study, we present the notion of 2‐conformal vector fields on Riemannian and semi‐Riemannian manifolds, which are an extension of Killing and conformal vector fields. Next, we provide suitable vector fields in Sol space that are 2‐conformal. A few implications of 2‐conformal vector fields in hyperbolic Ricci solitons are investigated.
Rawan Bossly +3 more
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International Journal of Mathematics and Mathematical Sciences, Volume 31, Issue 12, Page 751-760, 2002., 2002 We consider the boundary value problem −u″(x) = λf(u(x)), x ∈ (0, 1); u′(0) = 0; u′(1) + αu(1) = 0, where α > 0, λ > 0 are parameters and f ∈ c2[0, ∞) such that f(0) < 0. In this paper, we study for the two cases ρ = 0 and ρ = θ (ρ is the value of the solution at x = 0 and θ is such that F(θ) = 0 where F(s)=∫0sf(t)dt) the relation between λ and the ...
G. A. Afrouzi, M. Khaleghy Moghaddam
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Unbounded solutions of third order three-point boundary value problems on a half-line
Advances in Nonlinear Analysis, 2016 We consider the following third order three-point boundary value problem on a half-line: x'''(t)+q(t)f(t,x(t),x'(t),x''(t)) = 0, t ∈ (0,+∞), x'(0) = A, x(η) = B, x''(+∞) = C, where η ∈ (0,+∞), but fixed, and f : [0,+∞) × ℝ3 → ℝ satisfies Nagumo's ...
Agarwal Ravi P., Çetin Erbil
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On Solutions of the Nonlocal Generalized Coupled Langevin‐Type Pantograph Systems
Journal of Mathematics, Volume 2025, Issue 1, 2025.This paper concentrates on the analysis of a category of coupled Langevin‐type pantograph differential equations involving the generalized Caputo fractional derivative with nonlocal conditions. We conduct this analysis in two cases for the second member in the nonlinear function; in other words, for the real space R and an abstract Banach space Θ.
Houari Bouzid +5 more
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Multi-term fractional differential equations with nonlocal boundary conditions
Open Mathematics, 2018 We introduce and study a new kind of nonlocal boundary value problems of multi-term fractional differential equations. The existence and uniqueness results for the given problem are obtained by applying standard fixed point theorems.
Ahmad Bashir +3 more
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