Results 31 to 40 of about 237,988 (290)

ANTI-PERIODIC SOLUTIONS FOR HIGHER-ORDER NONLINEAR ORDINARY DIFFERENTIAL EQUATIONS [PDF]

open access: yesJournal of the Korean Mathematical Society, 2010
In this paper, the existence of anti-periodic solutions for higher-order nonlinear ordinary dierential equations is studied by us- ing degree theory and some known results are improved to some extent.
Tai Yong Chen   +3 more
openaire   +1 more source

Anti-Periodic Synchronization of Clifford-Valued Neutral-Type Recurrent Neural Networks With D Operator

open access: yesIEEE Access, 2022
In this paper, a class of Clifford-valued neutral-type recurrent neural networks with $D$ operator is explored. By using non-decomposition method and the Banach fixed point theorem, we obtain several sufficient conditions for the existence of anti ...
Jin Gao, Lihua Dai
doaj   +1 more source

Anti-periodic boundary value problems for Caputo-Fabrizio fractional impulsive differential equations [PDF]

open access: yesMathematica Moravica, 2022
In this paper, we shall discuss the existence and uniqueness of solutions for a nonlinear anti-periodic boundary value problem for fractional impulsive differential equations involving a Caputo-Fabrizio fractional derivative of order r ∈ (0, 1).
Benyoub Mohammed, Belghaba Kacem
doaj   +1 more source

Self-gravitating scalar breathers with negative cosmological constant [PDF]

open access: yes, 2015
Breather-type (time-periodic and spatially localized) solutions with spherical symmetry are investigated in a massless scalar field theory coupled to Einstein's gravity with cosmological constant in $d$ spatial dimensions imposing anti de Sitter (AdS ...
Fodor, Gyula   +2 more
core   +4 more sources

Isolating Segments and Anti-Periodic Solutions

open access: yesMonatshefte f?r Mathematik, 2002
Using the technique based on the notion of periodic isolating segments, the author establishes a sufficient condition for the existence of \(2^n\) geometrically distinct solutions of the two-point boundary value problem \[ \dot{x}=f(t,x), \qquad x(0)=g(x(nT)), \] where \(f\) is a smooth vector field on the manifold \(M\) and \(n\) is a positive integer.
openaire   +3 more sources

Anti-Periodic Solutions for Neural Networks with Delays and Impulses [PDF]

open access: yesMathematical and Computational Applications, 2013
In this paper we investigate a class of artificial neural networks with delays subject to periodic impulses. By exploiting Lyapunov functions, we analyze the global exponential stability of an arbitrary solution with initial value being bounded by Υ .
Shi, Peilin, Dong, Lingzhen
openaire   +1 more source

Periodic orbits in Hamiltonian systems with involutory symmetries [PDF]

open access: yes, 2015
We study the existence of families of periodic solutions in a neighbourhood of a symmetric equilibrium point in two classes of Hamiltonian systems with involutory symmetries. In both classes, involutions reverse the sign of the Hamiltonian function.
Alomair, Reem, Montaldi, James
core   +2 more sources

Justification of the coupled-mode approximation for a nonlinear elliptic problem with a periodic potential

open access: yes, 2007
Coupled-mode systems are used in physical literature to simplify the nonlinear Maxwell and Gross-Pitaevskii equations with a small periodic potential and to approximate localized solutions called gap solitons by analytical expressions involving ...
A. Pankov   +20 more
core   +1 more source

Anti-periodic solutions for semilinear evolution equations

open access: yesJournal of Mathematical Analysis and Applications, 2006
The author considers the following semilinear evolution equation \[ \begin{cases} u'(t)+Au(t)+\partial Gu(t)+F(t,u(t))=0 &\text{a.e. }t\in \mathbb{R},\\ u(t+T)=-u(t), &t\in \mathbb{R},\end{cases} \tag{1} \] in a separable Hilbert space \(H\). He proves that if \(A:D(A) \subset H\to H\) is a linear densely defined closed selfadjoint operator such that ...
openaire   +2 more sources

Further physical research about soliton structures and phase portraits in nonlinear fractional electrical transmission line model

open access: yesResults in Physics, 2023
This paper presents several novel contributions in the field of nonlinear fractional low-pass electrical transmission line model (NFLETLM). Firstly, using the modified (G′G2)-expansion method and the extended modified Jacobi elliptic expansion method, we
Jianming Qi   +3 more
doaj   +1 more source

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