Results 1 to 10 of about 1,158 (197)

Boundary value problems for strongly nonlinear equations under a Wintner-Nagumo growth condition [PDF]

open access: yesBoundary Value Problems, 2017
We study the following strongly nonlinear differential equation: ( a ( t , x ( t ) ) Φ ( x ′ ( t ) ) ) ′ = f ( t , x ( t ) , x ′ ( t ) ) , a.e. in  [ 0 , T ] $$\bigl(a \bigl(t,x(t) \bigr)\Phi\bigl(x'(t) \bigr) \bigr)'= f \bigl(t,x(t),x'(t) \bigr), \quad ...
Cristina Marcelli, Francesca Papalini
doaj   +4 more sources

Existence of solutions for higher order $\phi-$Laplacian BVPs on the half-line using a one-sided Nagumo condition with nonordered upper and lower solutions

open access: yesCubo, 2023
In this paper, we consider the following $(n+1)$st order bvp on the half line with a $\phi-$Laplacian operator $$ \begin{cases} (\phi(u^{(n)}))'(t)=f(t,u(t),\ldots,u^{(n)}(t)),& a.e., \,t\in [ 0,+\infty ),\\& n\in \mathbb{N}\setminus\{0\}, \\ u^
A. Zerki, K. Bachouche, K. Ait-Mahiout
doaj   +5 more sources

A Fourth-Order Boundary Value Problem with One-Sided Nagumo Condition [PDF]

open access: yesBoundary Value Problems, 2011
The aim of this paper is to study a fourth-order separated boundary value problem with the right-hand side function satisfying one-sided Nagumo-type condition.
Wenjie Gao, Wenjing Song
doaj   +4 more sources

Solvability of a boundary value problem with a Nagumo Condition [PDF]

open access: yesJournal of Taibah University for Science, 2018
The aim of this paper is to discuss the existence and localization of solutions for a generalized Emden-Fowler equation involving a conformable derivative and with a Dirichlet boundary condition.
R. Khaldi, A. Guezane-Lakoud
doaj   +2 more sources

Sufficient Synchronization Conditions for Resistively and Memristively Coupled Oscillators of FitzHugh-Nagumo-type

open access: yesDiscover Applied Sciences, 2023
We study the synchronization behavior of a class of identical FitzHugh-Nagumo-type oscillators under adaptive coupling. We describe the oscillators by a circuit model and we provide a sufficient synchronization condition that relies on the shape of the ...
Ralf Köhl (14225497)   +3 more
core   +2 more sources

A Nagumo condition for ordinary differential equations [PDF]

open access: yesProceedings of the American Mathematical Society, 1976
A condition is given which guarantees that each solution of y ( n ) = f ( x , y , y
L. K. Jackson
core   +3 more sources

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

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   +2 more sources

A third order boundary value problem with one-sided Nagumo condition

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2005
In this paper we present an existence and location result for the third order separated boundary value problem composed by the differential equation u′′′(t)=f(t,u(t),u′(t),u′′(t)) with the boundary conditons u(a)=A, u′′(a)=0 and u′′(b)=0, where f:[a,b]×
Grossinho, Maria do Rosário   +5 more
core   +5 more sources

Semigroups generated by pseudo-contractive mappings under the Nagumo condition

open access: yesJournal of Differential Equations, 2008
Let X be a Banach space whose dual space X∗ is uniformly convex. We demonstrate that, for any demicontinuous, weakly Nagumo, k-pseudo-contractive mapping T:D(T)⊆X→X with closed domain, A=T−I weakly generates a semigroup on D(T). In this paper, we project
Hester, Anthony, Morales, Claudio H.
core   +2 more sources

Positive Invariance Condition for Continuous Dynamical Systems Based on Nagumo Theorem

open access: yes, 2022
In this paper, we obtain sufficient and necessary conditions of some classical convex sets as positively invariant sets for a continuous dynamical system, namely positive invariance conditions.
Song, Yunfei
core   +2 more sources

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