Results 11 to 20 of about 8,371,508 (357)

Computation of periodic solution bifurcations in ODEs using bordered systems [PDF]

open access: yes, 2002
We consider numerical methods for the computation and continuation of the three generic secondary periodic solution bifurcations in autonomous ODEs, namely the fold, the period-doubling (or flip) bifurcation, and the torus (or Neimark–Sacker) bifurcation.
Doedel, E. J.   +2 more
core   +2 more sources

Linear Impulsive Periodic System with Time-Varying Generating Operators on Banach Space

open access: yesAdvances in Difference Equations, 2007
A class of the linear impulsive periodic system with time-varying generating operators on Banach space is considered. By constructing the impulsive evolution operator, the existence of T0-periodic PC-mild solution for homogeneous linear impulsive ...
JinRong Wang, X. Xiang, W. Wei
doaj   +2 more sources

Analytical solutions of the simplified Mathieu’s equation [PDF]

open access: yesINCAS Bulletin, 2016
Consider a second order differential linear periodic equation. The periodic coefficient is an approximation of the Mathieu’s coefficient. This equation is recast as a first-order homogeneous system.
Nicolae MARCOV
doaj   +1 more source

Existence of bounded solutions for retarded equations with infinite delay, impulses, and nonlocal condition

open access: yesNOVASINERGIA, 2020
In this work, we study the existence of bounded solutions for a semilinear retarded equation with infinite delay, impulse, and non-local conditions. We also show that under some conditions this bounded solution is unique, periodic, or almost periodic ...
Génesis Carrillo   +2 more
doaj   +1 more source

Existence and regularity of time-periodic solutions to the three-dimensional Navier-Stokes equations [PDF]

open access: yes, 2014
Existence, uniqueness, and regularity of time-periodic solutions to the Navier-Stokes equations in the three-dimensional whole-space are investigated. We consider the Navier-Stokes equations with a non-zero drift term corresponding to the physical model ...
Kyed, Mads
core   +1 more source

Existence, Uniqueness and Exponential Stability of Periodic Solution for Discrete-Time Delayed BAM Neural Networks Based on Coincidence Degree Theory and Graph Theoretic Method

open access: yesMathematics, 2019
In this work, a general class of discrete time bidirectional associative memory (BAM) neural networks (NNs) is investigated. In this model, discrete and continuously distributed time delays are taken into account.
M. Iswarya   +5 more
semanticscholar   +1 more source

Analysis of a mathematical model with nonlinear susceptibles-guided interventions

open access: yesMathematical Biosciences and Engineering, 2019
In this paper, we considered a mathematical model describing the nonlinear susceptibles-guided vaccination and isolation strategies, incorporating the continuously saturated treatment. In this strategy, we find that the disease-free periodic solution can
Qian Li, Yanni Xiao
doaj   +1 more source

Periods of periodic solutions and the Lipschitz constant [PDF]

open access: yesProceedings of the American Mathematical Society, 1969
let x = -Lx2, X2 = Lxi, x =0 for 2 < i < n, then (2) is satisfied letting F(x) = (-Lx2, Lxl, 0, * * *, 0), and all nonconstant solutions are periodic with period 2wr/L. To prove the theorem, we define the functions f(t) = F(x(t)) and N(t) = f(t)I| and y(t) =f(t)/N(t), for tER. The function y(t) is a unit vector tangent to the periodic trajectory.
openaire   +1 more source

Simulation of a photosynthesis

open access: yesLietuvos Matematikos Rinkinys, 2004
It is observed the differential equations system. The stable periodic solutions of the differential equa­tions system of neutral type is constructed, which is based on the theory of bifurcations.
Marina Grabovskaja, Donatas Švitra
doaj   +3 more sources

A note on periodic solutions of functional differential equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
The existence of periodic solution for a certain functional differential equation with quasibounded nonlinearity is established.
S. H. Chang
doaj   +1 more source

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