Results 71 to 80 of about 1,790 (138)
Resonant nonlinear periodic problems with the scalar p-Laplacian and a nonsmooth potential [PDF]
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
A Counterexample for Singular Equations with Indefinite Weight
We construct a second-order equation x¨=h(t)/xp{\ddot{x}=h(t)/x^{p}}, with p>1{p>1} and the sign-changing, periodic weight function h having negative mean, which does not have periodic solutions.
Ureña Antonio J.
doaj +1 more source
Touchdown solutions in general MEMS models
We study general problems modeling electrostatic microelectromechanical systems devices (Pλ )φ(r,−u′(r))=λ∫0rf(s)g(u(s))ds,r∈(0,1 ...
Clemente Rodrigo +3 more
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Monotone and convex positive solutions for fourth-order multi-point boundary value problems
The existence results of multiple monotone and convex positive solutions for some fourth-order multi-point boundary value problems are established. The nonlinearities in the problems studied depend on all order derivatives. The analysis relies on a fixed
Chunfang Shen, Liu Yang, Weiguo Zhang
doaj
Periodic Impact Motions at Resonance of a Particle Bouncing on Spheres and Cylinders
We investigate the existence of periodic trajectories of a particle, subject to a central force, which can hit a sphere or a cylinder. We will also provide a Landesman–Lazer-type condition in the case of a nonlinearity satisfying a double resonance ...
Sfecci Andrea
doaj +1 more source
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
In this paper, we establish existence and multiplicity results for systems of first-order differential equations. To this end, we introduce the method of solution-regions.
Frigon Marlène
doaj +1 more source
Stability, Resonance and Lyapunov Inequalities for Periodic Conservative Systems [PDF]
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
By obtaining intervals of the parameter λ, this article investigates the existence of a positive solution for a class of nonlinear boundary value problems of second-order differential equations with integral boundary conditions in abstract spaces ...
Zhang Peiguo
doaj
The generalized quasilinearization technique is applied to obtain a monotone sequence of iterates converging uniformly and quadratically to a solution of three point boundary value problem for second order differential equations with nonlinear boundary ...
Bashir Ahmad +2 more
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