Results 21 to 30 of about 768,044 (272)

Exact solitary and periodic wave solutions of high-order nonlinear Schrödinger equation and their relationship with Hamilton energy

open access: yesAIP Advances, 2021
In this paper, we study the exact solitary wave solutions, periodic wave solutions, and bounded rational function solution of the high-order nonlinear Schrödinger equation and the evolutional relationships between the solitary and periodic wave solutions
Weiguo Zhang   +3 more
doaj   +1 more source

Nahm Transform For Periodic Monopoles And N=2 Super Yang-Mills Theory [PDF]

open access: yes, 2000
We study Bogomolny equations on $R^2\times S^1$. Although they do not admit nontrivial finite-energy solutions, we show that there are interesting infinite-energy solutions with Higgs field growing logarithmically at infinity.
Cherkis, Sergey A., Kapustin, Anton
core   +2 more sources

Periodic solutions of periodic generalized food limited model

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
By using the continuation theorem of coincidence degree theory, the existence of positive periodic solutions for a periodic generalized food limited model with state dependent delays and distributed delays is studied, respectively.
Yongkun Li
doaj   +1 more source

Periodic Solution and Asymptotic Stability for the Magnetohydrodynamic Equations with Inhomogeneous Boundary Condition

open access: yesAxioms, 2019
We show, using the spectral Galerkin method together with compactness arguments, the existence and uniqueness of the periodic strong solutions for the magnetohydrodynamic-type equations with inhomogeneous boundary conditions.
Igor Kondrashuk   +3 more
doaj   +1 more source

Time—periodic weak solutions

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1990
In continuing from previous papers, where we studied the existence and uniqueness of the global solution and its asymptotic behavior as time t goes to infinity, we now search for a time-periodic weak solution u(t) for the equation whose weak formulation ...
Eliana Henriques de Brito
doaj   +1 more source

Stability and instability for periodic solutions of delay equations with "steplike" feedback

open access: yesElectronic Journal of Qualitative Theory of Differential Equations, 2012
We consider the stability of periodic solutions of certain delay equations $x'(t) = f(x_t)$ for which the special structure of the equation allows us to define return maps that are semiconjugate to finite-dimensional maps.
Benjamin Kennedy
doaj   +1 more source

Exact Solutions for Equations of Bose-Fermi Mixtures in One-Dimensional Optical Lattice [PDF]

open access: yes, 2007
We present two new families of stationary solutions for equations of Bose-Fermi mixtures with an elliptic function potential with modulus $k$. We also discuss particular cases when the quasiperiodic solutions become periodic ones.
Gerdjikov, Vladimir S.   +2 more
core   +6 more sources

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

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

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