Results 31 to 40 of about 766,070 (327)

Bounded and Periodic Solutions of Semilinear Impulsive Periodic System on Banach Spaces

open access: yesFixed Point Theory and Applications, 2008
A class of semilinear impulsive periodic system on Banach spaces is considered. First, we introduce the T0-periodic PC-mild solution of semilinear impulsive periodic system.
Qian Chen   +3 more
doaj   +2 more sources

Relative Periodic Solutions of the Complex Ginzburg-Landau Equation

open access: yes, 2005
A method of finding relative periodic orbits for differential equations with continuous symmetries is described and its utility demonstrated by computing relative periodic solutions for the one-dimensional complex Ginzburg-Landau equation (CGLE) with ...
Dang‐Vu H.   +7 more
core   +2 more sources

Different Wave Structures for the (2+1)-Dimensional Korteweg-de Vries Equation

open access: yesAdvances in Mathematical Physics, 2022
In this article, a (2+1)-dimensional Korteweg-de Vries equation is investigated. Abundant periodic wave solutions are obtained based on the Hirota’s bilinear form and a direct test function.
Chun-Rong Qin   +4 more
doaj   +1 more source

Travelling wave solutions for the doubly dispersive equation using improved modified extended tanh-function method

open access: yesAlexandria Engineering Journal, 2022
In the present paper, the improved modified extended tanh-function method is employed to get new exact traveling wave solutions for the doubly dispersive model. Several types of solutions are obtained using the proposed method.
Manar S. Ahmed   +2 more
doaj   +1 more source

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

On the coexistence of periodic solutions

open access: yesJournal of Differential Equations, 1970
(p(t; A)) wYyldt2 = > 5 = Pk 4Y, where X is a real parameter, and, for every /\, p(t; h) are real continuous periodic functions with period n defined for all t E (---co, 03). The problem of the coexistence of periodic solutions consists of studying such values of parameter h for which two linearly independent and periodic or hay-periodic1 solutions ...
openaire   +3 more sources

Periods of solutions of periodic differential equations

open access: yesDifferential and Integral Equations, 2016
Smooth non-autonomous T-periodic differential equations x'(t)=f(t,x(t)) defined in \R\K^n, where \K is \R or \C and n 2 can have periodic solutions with any arbitrary period~S. We show that this is not the case when n=1. We prove that in the real C^1-setting the period of a non-constant periodic solution of the scalar differential equation is a divisor
Cima, Anna   +2 more
openaire   +3 more sources

Exact one-periodic and two-periodic wave solutions to Hirota bilinear equations in 2+1 dimensions

open access: yes, 2008
Riemann theta functions are used to construct one-periodic and two-periodic wave solutions to a class of (2+1)-dimensional Hirota bilinear equations.
Belokolos E.   +8 more
core   +1 more source

Bifurcation of periodic solutions

open access: yesJournal of Mathematical Analysis and Applications, 1979
Mechanical and electrical phenomena which can be described mathematically by the bifurcation or appearance of periodic solutions of a nonlinear ordinary different equation when some parameter is varied have been well-known for many years. See Minorsky [7].
openaire   +3 more sources

ON PERIODIC SOLUTIONS OF 2-PERIODIC LYNESS' EQUATIONS [PDF]

open access: yesInternational Journal of Bifurcation and Chaos, 2013
We study the existence of periodic solutions of the nonautonomous periodic Lyness' recurrenceun+2 = (an + un+1)/un, where {an}n is a cycle with positive values a, b and with positive initial conditions. It is known that for a = b = 1 all the sequences generated by this recurrence are 5-periodic.
Bastien, Guy   +2 more
openaire   +7 more sources

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