Results 21 to 30 of about 1,252 (111)

Exact solutions for fractional partial differential equations by a new fractional sub-equation method

open access: yes, 2013
In this paper, we propose a new fractional sub-equation method for finding exact solutions of fractional partial differential equations (FPDEs) in the sense of modified Riemann-Liouville derivative, which is the fractional version of the known (G′/G ...
B. Zheng, Chuanbao Wen
semanticscholar   +1 more source

Higher-Order Rogue Wave and Rational Soliton Solutions of Discrete Complex mKdV Equations

open access: yesEast Asian Journal on Applied Mathematics, 2018
The generalised perturbation (n, N − n)-fold Darboux transformation is used to derive new higher-order rogue wave and rational soliton solutions of the discrete complex mKdV equations.
Xiaoyong Wen
semanticscholar   +1 more source

Andrew Lenard: A Mystery Unraveled [PDF]

open access: yes, 2005
The theory of bi-Hamiltonian systems has its roots in what is commonly referred to as the "Lenard recursion formula". The story about the discovery of the formula told by Andrew Lenard is the subject of this article.Comment: Published in SIGMA (Symmetry,
Praught, Jeffery, Smirnov, Roman G.
core   +2 more sources

Bi-integrable and tri-integrable couplings of a soliton hierarchy associated with SO(4)

open access: yesOpen Mathematics, 2017
In our paper, the theory of bi-integrable and tri-integrable couplings is generalized to the discrete case. First, based on the six-dimensional real special orthogonal Lie algebra SO(4), we construct bi-integrable and tri-integrable couplings associated ...
Zhang Jian, Zhang Chiping, Cui Yunan
doaj   +1 more source

Kinky periodic pulse and interaction of bell wave with kink pulse wave propagation in nerve fibers and wall motion in liquid crystals

open access: yesPartial Differential Equations in Applied Mathematics, 2020
In this article, we apply a direct influential approach namely enhanced modified simple equation (EMSE) method to integrate the Burgers–Huxley (BH) and FitzHugh–Nagumo (FHN) equations which explain nerve pulse propagation in nerve fibers, circuit theory ...
Md. Mamunur Roshid   +3 more
doaj   +1 more source

Controlling the dynamics of Burgers equation with a high‐order nonlinearity

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 62, Page 3321-3332, 2004., 2004
We investigate analytically as well as numerically Burgers equation with a high‐order nonlinearity (i.e., ut = νuxx − unux + mu + h(x)). We show existence of an absorbing ball in L2[0, 1] and uniqueness of steady state solutions for all integer n ≥ 1.
Nejib Smaoui
wiley   +1 more source

Motion of Inextensible Quaternionic Curves and Modified Korteweg-de Vries Equation

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2022
Many curve evolutions have been determined which are integrable in recent times. The motion of curves can be defined by certain integrable equations including the modified Korteweg-de Vries.
Eren Kemal
doaj   +1 more source

The generalized Burgers equation with and without a time delay

open access: yesInternational Journal of Stochastic Analysis, Volume 2004, Issue 1, Page 73-96, 2004., 2004
We consider the generalized Burgers equation with and without a time delay when the boundary conditions are periodic with period 2π. For the generalized Burgers equation without a time delay, that is, ut = vuxx − uux + u + h(x), 0 < x < 2π, t > 0, u(0, t) = u(2π, t), u(x, 0) = u0(x), a Lyapunov function method is used to show boundedness and uniqueness
Nejib Smaoui, Mona Mekkaoui
wiley   +1 more source

The Painleve Test and Reducibility to the Canonical Forms for Higher-Dimensional Soliton Equations with Variable-Coefficients [PDF]

open access: yes, 2006
The general KdV equation (gKdV) derived by T. Chou is one of the famous (1+1) dimensional soliton equations with variable coefficients. It is well-known that the gKdV equation is integrable.
Kobayashi, Tadashi, Toda, Kouichi
core   +1 more source

Nonanalytic solutions of the KdV equation

open access: yesAbstract and Applied Analysis, Volume 2004, Issue 6, Page 453-460, 2004., 2004
We construct nonanalytic solutions to the initial value problem for the KdV equation with analytic initial data in both the periodic and the nonperiodic cases.
Peter Byers, A. Alexandrou Himonas
wiley   +1 more source

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