Results 21 to 30 of about 2,439,749 (187)

Upper and lower solutions for BVPs on the half-line with variable coefficient and derivative depending nonlinearity

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2011
This paper is concerned with a second-order nonlinear boundary value problem with a derivative depending nonlinearity and posed on the positive half-line. The derivative operator is time dependent.
Smail Djebali, S. Zahar
doaj   +1 more source

New results and applications on the existence results for nonlinear coupled systems

open access: yesAdvances in Difference Equations, 2021
In this manuscript, we study a certain classical second-order fully nonlinear coupled system with generalized nonlinear coupled boundary conditions satisfying the monotone assumptions.
Imran Talib   +4 more
doaj   +1 more source

Monostable-Type Travelling Wave Solutions of the Diffusive FitzHugh-Nagumo-Type System in 𝐑𝑁

open access: yesAbstract and Applied Analysis, 2012
This paper is concerned with monostable-type travelling wave solutions of the diffusive FitzHugh-Nagumo-type system (FHN) in 𝐑𝑁 for the two components 𝑢 and 𝑣.
Chih-Chiang Huang
doaj   +1 more source

Positive solutions for boundary value problems of a class of second-order differential equation system

open access: yesOpen Mathematics, 2023
This article discusses the existence of positive solutions for the system of second-order ordinary differential equation boundary value problems −u″(t)=f(t,u(t),v(t),u′(t)),t∈[0,1],−v″(t)=g(t,u(t),v(t),v′(t)),t∈[0,1],u(0)=u(1)=0,v(0)=v(1)=0,\left\{\begin{
Wang Dan, Li Yongxiang, Su Yi
doaj   +1 more source

Indentical synchronization in complete networks of reaction-diffusion equations of FitzHugh-Nagumo

open access: yesHo Chi Minh City Open University Journal of Science - Engineering and Technology, 2018
Synchronization is a ubiquitous feature in many natural systems and nonlinear science. This paper studies the synchronization in complete network consisting of n nodes.
Phan Van Long Em
doaj   +1 more source

Semigroups generated by pseudo-contractive mappings under the Nagumo condition

open access: yesJournal of Differential Equations, 2008
This paper gives important results on existence on closed sets of a differential equation of type \(u'=Tu-u\) in Banach spaces. A weak tangency condition of Nagumo type is imposed. The operator \(T\) is demicontinuous and pseudo-contractive. Local as well as global solutions are investigated. Fixed points results are given as applications.
Hester, Anthony, Morales, Claudio H.
openaire   +1 more source

Synchronization of Traveling Waves in Memristively Coupled Ensembles of FitzHugh–Nagumo Neurons With Periodic Boundary Conditions

open access: yesFrontiers in Physics, 2022
Synchronization of traveling waves in two rings of FitzHugh–Nagumo neurons is studied. Coupling between neurons within each ring is dissipative, while one between rings is memristive. Complete synchronization of waves in identical rings in the presence of an initial phase shift between wave processes and partial synchronization of waves in the case of ...
I. A. Korneev   +5 more
openaire   +2 more sources

Boundary value problems for singular second order equations

open access: yesFixed Point Theory and Applications, 2018
We investigate strongly nonlinear differential equations of the type (Φ(k(t)u′(t)))′=f(t,u(t),u′(t)),a.e. on [0,T], $$\bigl(\Phi \bigl(k(t) u'(t) \bigr) \bigr)'= f \bigl(t,u(t),u'(t) \bigr), \quad\text{a.e. on } [0,T], $$ where Φ is a strictly increasing
Alessandro Calamai   +2 more
doaj   +1 more source

Multiple solutions of boundary value problems with ϕ-Laplacian operators and under a Wintner-Nagumo growth condition [PDF]

open access: yesBoundary Value Problems, 2013
Abstract In this paper, we establish the existence of multiple solutions to second-order differential equations with ϕ-Laplacian satisfying periodic, Dirichlet or Neumann boundary conditions. The right-hand side is a Carathéodory function satisfying a growth condition of Wintner-Nagumo type.
Noha El Khattabi   +2 more
openaire   +2 more sources

Existence Theorems on Solvability of Constrained Inclusion Problems and Applications

open access: yesAbstract and Applied Analysis, 2018
Let X be a real locally uniformly convex reflexive Banach space with locally uniformly convex dual space X⁎. Let T:X⊇D(T)→2X⁎ be a maximal monotone operator and C:X⊇D(C)→X⁎ be bounded and continuous with D(T)⊆D(C).
Teffera M. Asfaw
doaj   +1 more source

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