Results 11 to 20 of about 2,392,564 (201)

Phase Portraits and Bounded and Singular Traveling Wave Solution of Stochastic Nonlinear Biswas–Arshed Equation

open access: yesDiscrete Dynamics in Nature and Society, 2022
The main purpose of the current paper is to study the phase portraits and bounded and singular traveling wave solution of the stochastic nonlinear Biswas–Arshed equation by using the “three-step method” of Professor Li’s method together with the phase ...
Yong Tang, Wei Zeng, Zhao Li
doaj   +1 more source

Solving Nonlinear Hydraulic Equations of Water Distribution Networks by Using a Trust-Region Method [PDF]

open access: yesControl and Optimization in Applied Mathematics, 2022
In a water distribution network, in order to analyze and determine its parameters such as head and flow rate, we have to solve nonlinear hydraulic equations in each component of the network.
Mahdi Ahmadnia   +2 more
doaj   +1 more source

Nonlinear Dirac Equations [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
We construct nonlinear extensions of Dirac's relativistic electron equation that preserve its other desirable properties such as locality, separability, conservation of probability and Poincaré invariance. We determine the constraints that the nonlinear term must obey and classify the resultant non-polynomial nonlinearities in a double expansion in the
Ng, W.K., Parwani, R.R.
openaire   +5 more sources

Logarithmic Sobolev inequality for the invariant measure of the periodic Korteweg--de Vries equation. [PDF]

open access: yes, 2012
The periodic KdV equation arises from a Hamiltonian system with infinite-dimensional phase space L^2(T). Bourgain has shown that there exists a Gibbs measure \nu on balls in the phase space such that the Cauchy problem for KdV is well posed on the ...
Blower, Gordon
core   +5 more sources

Finding the one-loop soliton solution of the short-pulse equation by means of the homotopy analysis method [PDF]

open access: yes, 2009
The homotopy analysis method is applied to the short-pulse equation in order to find an analytic approximation to the known exact solitary upright-loop solution. It is demonstrated that the approximate solution agrees well with the exact solution.
Abbasbandy, S., Parkes, E.J.
core   +3 more sources

Theory for Electrochemical Heat Sources and Exothermic Explosions: The Akbari–Ganji Method

open access: yesElectrochem, 2023
A device that transforms chemical energy into electrical energy is an electrochemical cell. The reaction type inside the cell determines whether it is exothermic or endothermic.
Ramalingam Vanaja   +3 more
doaj   +1 more source

An Efficient Two-Step Iterative Family Adaptive with Memory for Solving Nonlinear Equations and Their Applications

open access: yesMathematical and Computational Applications, 2022
We propose a new iterative scheme without memory for solving nonlinear equations. The proposed scheme is based on a cubically convergent Hansen–Patrick-type method.
Himani Sharma   +2 more
doaj   +1 more source

Solitary-wave solutions of the Degasperis-Procesi equation by means of the homotopy analysis method [PDF]

open access: yes, 2010
The homotopy analysis method is applied to the Degasperis-Procesi equation in order to find analytic approximations to the known exact solitary-wave solutions for the solitary peakon wave and the family of solitary smooth-hump waves.
Abbasbandy, S., Parkes, E.J.
core   +3 more sources

Multiscale expansion and integrability properties of the lattice potential KdV equation [PDF]

open access: yes, 2008
We apply the discrete multiscale expansion to the Lax pair and to the first few symmetries of the lattice potential Korteweg-de Vries equation. From these calculations we show that, like the lowest order secularity conditions give a nonlinear Schrödinger
Decio Levi   +10 more
core   +1 more source

Neumann problem on the semi-line for the Burgers equation [PDF]

open access: yes, 2011
In this article, the Neumann problem on the semi-line for the Burgers equation is considered. The problem is reduced to a nonlinear integral equation in one independent variable, whose unique solution is proven to exist for small time.
Sommacal, Matteo, de Lillo, Silvana
core   +1 more source

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