Results 51 to 60 of about 1,683 (93)

Solvability for a third order discontinuous fully equation with nonlinear functional boundary conditions [PDF]

open access: yes, 2006
We prove an existence and location result for the third order functional nonlinear boundary value problem u′′′(t) = f(t,u,u′(t),u′′(t)), for t∈[a,b], 0 = L₀(u,u′,u(t₀)), 0 = L₁(u,u′,u′(a),u′′(a)), 0 = L₂(u,u′,u′(b),u′′(b)), with t₀∈[a,b] given ...
Cabada, Alberto   +2 more
core  

Bifurcation of positive and negative solutions of nonlinearizable Sturm-Liouville problems with indefinite weight

open access: yes, 2020
We consider nonlinearizable Sturm-Liouville problem indefinite weight function. We show the existence of two pairs of global continua emanating from the bifurcation intervals surrounding the principal eigenvalues of the corresponding linear problem and ...
Z. Aliyev, Leyla Nasirova
semanticscholar   +1 more source

Generalized quasilinearization method for nonlinear functional differential equations

open access: yes, 2003
International Journal of Stochastic Analysis, Volume 16, Issue 1, Page 33-43, 2003.
Bashir Ahmad   +2 more
wiley   +1 more source

Resonant nonlinear periodic problems with the scalar p-Laplacian and a nonsmooth potential [PDF]

open access: yes, 2006
We study periodic problems driven by the scalar p-Laplacian with a nonsmooth potential. Using the nonsmooth critical point theory for locally Lipsctiz functions,we prove two existence theorems under conditions of resonance at infinity with respect to ...
Aizicovici, Sergiu   +2 more
core   +1 more source

Coupled fixed point theorems for α-ψ-contractive type mappings in partially ordered metric spaces

open access: yes, 2012
The object of this paper is to determine some coupled fixed point theorems for nonlinear contractive mappings in the framework of a metric space endowed with partial order.
M. Mursaleen   +2 more
semanticscholar   +1 more source

Existence of solutions for integro-differential equations of fractional order with nonlocal three-point fractional boundary conditions

open access: yes, 2013
In this paper, we study the existence of solutions for Riemann-Liouville type integro-differential equations of fractional order α∈(2,3] with nonlocal three-point fractional boundary conditions via Sadovskii’s fixed point theorem for condensing maps.
R. Agarwal   +3 more
semanticscholar   +1 more source

Stability, Resonance and Lyapunov Inequalities for Periodic Conservative Systems [PDF]

open access: yes, 2010
This paper is devoted to the study of Lyapunov type inequalities for periodic conservative systems. The main results are derived from a previous analysis which relates the best Lyapunov constants to some especial (constrained or unconstrained ...
Canada, Antonio, Villegas, Salvador
core  

Boundary value problems for fractional differential equations with three-point fractional integral boundary conditions

open access: yesAdvances in Differential Equations, 2012
This article studies a boundary value problem of nonlinear fractional differential equations with three-point fractional integral boundary conditions. Some new existence results are obtained by applying standard fixed point theorems.
W. Sudsutad, J. Tariboon
semanticscholar   +1 more source

A generalization of Geraghty's theorem in partially ordered metric spaces and applications to ordinary differential equations

open access: yes, 2012
The purpose of this article is to present some fixed point theorems for generalized contraction in partially ordered complete metric spaces. As an application, we give an existence and uniqueness for the solution of an initial-boundary-value problem.2000
M. Gordji   +3 more
semanticscholar   +1 more source

The general differential-geometric structure of multidimensional Delsarte transmutation operators in parametric functional spaces and their applications in soliton theory. Part 2

open access: yes, 2004
The structure properties of multidimensional Delsarte transmutation operators in parametirc functional spaces are studied by means of differential-geometric tools.
Golenia, J.   +3 more
core   +1 more source

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