Results 61 to 70 of about 6,815 (228)

Triple solutions for a damped impulsive differential equation

open access: yesAdvances in Difference Equations, 2019
In this paper, we aim to obtain the existence of at least three classical solutions for nonlinear impulsive problems neither adding superlinear or local sublinear conditions to nonlinear term at zero nor adding superlinear assumptions to nonlinear term ...
Jian Liu   +3 more
doaj   +1 more source

Weak Solutions for a Class of Nonlocal Singular Problems Over the Nehari Manifold

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 11, Page 12360-12378, 30 July 2026.
ABSTRACT In this paper, we consider a nonlocal model of dilatant non‐Newtonian fluid with a Dirichlet boundary condition. By using the Nehari manifold and fibering map methods, we obtain the existence of at least two weak solutions, with sign information.
Zhenfeng Zhang   +2 more
wiley   +1 more source

Superlinear speedup by program transformation (extended abstract) [PDF]

open access: yes, 2012
Superlinear speedup by program transformation (extended ...
Hamilton, Geoff W.   +3 more
core  

On periodic solutions of superlinear parabolic problems [PDF]

open access: yes, 1986
In this paper we study the existence of positive nontrivial periodic solutions of semilinear parabolic problems. Most of the nonlinearities considered are of the superlinear type. Some bifurcation results are proved as well.
Maria J. Esteban
core   +1 more source

Upper and lower solutions for a second-order three-point singular boundary-value problem

open access: yesElectronic Journal of Differential Equations, 2009
We study the singular boundary-value problem $$displaylines{ u''+ q(t)g(t,u)=0,quad t in (0,1),; eta in (0,1),;gamma >0cr u(0)=0, quad u(1)=gamma u(eta),.
Qiumei Zhang   +3 more
doaj  

Interplanetary Electric Fields for Extreme Magnetic Storms

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Using a list of sudden‐commencement storms, the ring‐current index, and 1‐h near‐Earth solar‐wind measurements from solar cycles 20–25, we develop extreme‐value statistical models relating storm intensity D=max{−Dst} $D=\max \left\{-Dst\right\}$ to the storm main‐phase maximum duskward interplanetary electric field E $E$.
Jeffrey J. Love   +3 more
wiley   +1 more source

Infinitely Many Nontrivial Solutions of Resonant Cooperative Elliptic Systems with Superlinear Terms

open access: yesAbstract and Applied Analysis, 2014
We study a class of resonant cooperative elliptic systems and replace the Ambrosetti-Rabinowitz superlinear condition with general superlinear conditions.
Guanwei Chen, Shiwang Ma
doaj   +1 more source

A 3D‐Printed Blister Test Platform for Quantifying Biointerface Adhesion Mechanisms

open access: yesAdvanced Materials Interfaces, Volume 13, Issue 14, 21 July 2026.
A 3D‐printed blister platform enables energy‐resolved characterization of soft hydrogel–rigid interfaces. Integrating precision pressure control with hyperelastic modeling directly quantifies adhesion energy (G) and R‐curve toughening. Results reveal that modulating hydrogel concentration and surface roughness drives a tunable transition from cohesive ...
Yoontae Kim   +4 more
wiley   +1 more source

Three nontrivial solutions for the p-Laplacian Neumann problems with a concave nonlinearity near the origin [PDF]

open access: yes, 2010
We consider a nonlinear Neumann problem driven by the p- Laplacian, with a right-hand side nonlinearity which is concave near the origin. Using variational techniques, combined with the method of upper-lower solutions and with Morse theory, we show ...
Staicu, Vasile   +2 more
core   +1 more source

Elliptic problems with superlinear convection terms [PDF]

open access: yes
In this manuscript we deal with elliptic equations with superlinear first order terms in divergence form of the following type −div(M(x)∇u)=−div(h(u)E(x))+f(x), where M is a bounded elliptic matrix, the vector field E and the function f belong to ...
Rita Cirmi G., Boccardo L., Buccheri S.
core   +1 more source

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