Results 21 to 30 of about 318,818 (290)

Logistic model for stock market bubbles and anti-bubbles [PDF]

open access: yes, 2017
Log-periodic power laws often occur as signatures of impending criticality of hierarchical systems in the physical sciences. It has been proposed that similar signatures may be apparent in the price evolution of financial markets as bubbles and the ...
Lynch, Christopher, Mestel, Benjamin
core   +1 more source

Homogenized out-of-plane shear response three-scale fiber-reinforced composites [PDF]

open access: yes, 2019
In the present work we embrace a three scales asymptotic homogenization approach to investigate the effective behavior of hierarchical linear elastic composites reinforced by cylindrical, uniaxially aligned fibers and possessing a periodic structure at ...
Bravo-Castillero, Julián   +7 more
core   +2 more sources

Existence and uniqueness of anti-periodic solutions for a class of nonlinear n-th order functional differential equations [PDF]

open access: yesOpuscula Mathematica, 2011
In this paper, we use the method of coincide degree theory to establish new results on the existence and uniqueness of anti-periodic solutions for a class of nonlinear \(n\)-th order functional differential equations of the form \[x^{(n)}(t)=F(t, x_t, x^{
Ling Liu, Yongkun Li
doaj   +1 more source

Exact solution and interfacial tension of the six-vertex model with anti-periodic boundary conditions [PDF]

open access: yes, 1995
We consider the six-vertex model with anti-periodic boundary conditions across a finite strip. The row-to-row transfer matrix is diagonalised by the `commuting transfer matrices' method.
Alcaraz F C   +14 more
core   +2 more sources

Anti-periodic solutions for nonlinear evolution inclusions

open access: yesJournal of Evolution Equations, 2018
The authors consider the nonlinear anti-periodic evolution inclusion \[ \begin{aligned} & -u'(t)\in A(t,u(t))+F(t,u(t))\text{ a.e. on }I=[0,T],\\ & u(0)=-u(T),\end{aligned}\eqno{(1)} \] where \(\left( X,H,X^{\ast }\right) \) is an evolution triple, \(A:I\times X\rightarrow 2^{X^{\ast }}\) and \(F:I\times X\rightarrow 2^{H}\). \ It is not assumed that \(
Gasiński, Leszek   +1 more
openaire   +2 more sources

Anti–Periodic Solutions for Clifford–Valued High–Order Hopfield Neural Networks with State–Dependent and Leakage Delays

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2020
A class of Clifford-valued high-order Hopfield neural networks (HHNNs) with state-dependent and leakage delays is considered. First, by using a continuation theorem of coincidence degree theory and the Wirtinger inequality, we obtain the existence of ...
Huo Nina, Li Bing, Li Yongkun
doaj   +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

Stability and Existence of Anti-Periodic Solution for FCNNs With Time-Varying Delays and Impulsive Impacts

open access: yesIEEE Access, 2019
This paper deals with the problem of anti-periodic solution for fuzzy cellular neural networks (FCNNs) with time-varying delays and impulsive impacts.
Qianhong Zhang, Fubiao Lin, Mingjun Hu
doaj   +1 more source

Delay-induced Synchronization Phenomena in an Array of Globally Coupled Logistic Maps [PDF]

open access: yes, 2003
We study the synchronization of a linear array of globally coupled identical logistic maps. We consider a time-delayed coupling that takes into account the finite velocity of propagation of the interactions.
A. C. Martí   +16 more
core   +3 more sources

On a Riemann–Liouville Type Implicit Coupled System via Generalized Boundary Conditions

open access: yesMathematics, 2021
We study a coupled system of implicit differential equations with fractional-order differential boundary conditions and the Riemann–Liouville derivative.
Usman Riaz   +5 more
doaj   +1 more source

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