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一维Burgers方程定解问题的同伦分析解
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作者 姜伟 徐秋丽 刘军丽 《长春师范大学学报》 2024年第8期8-11,34,共5页
针对一类Burgers方程定解问题,以Burgers方程的线性部分作为辅助线性算子,构造出相应的同伦方程,给出了同伦方程的同伦分析解.与已有结果进行比较,该同伦分析解有更好的数值逼近效果,能反映出真实的物理现象.
关键词 BURGERS方程 同伦方程 同伦分析解
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一维Swift-Hohenberg方程定解问题的同伦近似解析解 被引量:1
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作者 姜伟 《廊坊师范学院学报(自然科学版)》 2014年第3期19-21,26,共4页
针对一类Swift-Hohenberg方程定解问题,通过选择合适的辅助线性算子,构造出相应的同伦方程,给出了同伦方程的同伦分析解,并对结果进行了分析。与其他方法相比,同伦分析方法在求解非线性问题时有很明显的优势,是一个容易操作并可以控制... 针对一类Swift-Hohenberg方程定解问题,通过选择合适的辅助线性算子,构造出相应的同伦方程,给出了同伦方程的同伦分析解,并对结果进行了分析。与其他方法相比,同伦分析方法在求解非线性问题时有很明显的优势,是一个容易操作并可以控制误差的好方法,为求解强非线性问题开辟了一个全新的途径。 展开更多
关键词 SWIFT-HOHENBERG方程 同伦方程 同伦分析解
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Solitary Solution of Discrete mKdV Equation by Homotopy Analysis Method 被引量:1
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作者 WANG Zhen ZOU Li ZHANG Hong-Qing 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第6期1373-1378,共6页
In this paper, we apply homotopy analysis method to solve discrete mKdV equation and successfully obtain the bell-shaped solitary solution to mKdV equation. Comparison between our solution and the exact solution shows... In this paper, we apply homotopy analysis method to solve discrete mKdV equation and successfully obtain the bell-shaped solitary solution to mKdV equation. Comparison between our solution and the exact solution shows that homotopy analysis method is effective and validity in solving hybrid nonlinear problems, including solitary solution of difference-differential equation. 展开更多
关键词 differential-difference equation Homotopy analysis method homotopy-Pade approximation discrete mKdV equation SOLITON
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A Numerical Study of One-Dimensional Hyperbolic Telegraph Equation
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作者 Shaheed N. Huseen 《Journal of Mathematics and System Science》 2017年第2期62-72,共11页
In this paper, an approximate solution for the one-dimensional hyperbolic telegraph equation by using the q-homotopy analysis method (q-HAM) is proposed.The results shows that the convergence of the q- homotopy anal... In this paper, an approximate solution for the one-dimensional hyperbolic telegraph equation by using the q-homotopy analysis method (q-HAM) is proposed.The results shows that the convergence of the q- homotopy analysis method is more accurate than the convergence of the homotopy analysis method (HAM). 展开更多
关键词 q-Homotopy analysis method one-dimensional hyperbolic telegraph equation.
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Application of Homotopy Analysis Method to Solve Relativistic Toda Lattice System
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作者 王琪 《Communications in Theoretical Physics》 SCIE CAS CSCD 2010年第6期1111-1116,共6页
In this letter, the homotopy analysis method is successfully applied to solve the Relativistic Toda lattice system. Comparisons are made between the results of the proposed method and exact solutions. Analysis results... In this letter, the homotopy analysis method is successfully applied to solve the Relativistic Toda lattice system. Comparisons are made between the results of the proposed method and exact solutions. Analysis results show that homotopy analysis method is a powerful and easy-to-use analytic tool to solve systems of differential-difference equations. 展开更多
关键词 Jhomotopy analysis method relativistic Toda lattice system
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Loop Soliton Solutions of a Short Wave Model for a Degasperis-Procesi Equation
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作者 邹丽 宗智 +1 位作者 王振 张朔 《Journal of Marine Science and Application》 2011年第2期220-225,共6页
An analytic method, i.e. the homotopy analysis method, was applied for constructing the solutions of the short waves model equations associated with the Degasperis-Procesi (DP) shallow water waves equation. The explic... An analytic method, i.e. the homotopy analysis method, was applied for constructing the solutions of the short waves model equations associated with the Degasperis-Procesi (DP) shallow water waves equation. The explicit analytic solutions of loop soliton governing the propagation of short waves were obtained. By means of the transformation of independent variables, an analysis one-loop soliton solution expressed by a series of exponential functions was obtained, which agreed well with the exact solution. The results reveal the validity and great potential of the homotopy analysis method in solving complicated solitary water wave problems. 展开更多
关键词 homotopy analysis method one-loop soliton explicit analytic solution NONLINEARITY Degasperis-Procesi equation
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A short comment on the effect of a shear layer on nonlinear water waves 被引量:3
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作者 CANG Jie CHENG Jun GRIMSHAW Roge 《Science China(Physics,Mechanics & Astronomy)》 SCIE EI CAS 2011年第1期67-73,共7页
In this paper we study nonlinear periodic deep water waves propagating on a background shear current,which decays exponentially with depth.We extend the study of Cheng,Cang and Liao(2009) by introducing a second param... In this paper we study nonlinear periodic deep water waves propagating on a background shear current,which decays exponentially with depth.We extend the study of Cheng,Cang and Liao(2009) by introducing a second parameter which measures the depth of the shear current.A high-order convergent analytical series solution is obtained by the homotopy analysis method(HAM).A detailed analysis of the impact of the depth parameter is given.We find that increasing this parameter so that the shear current is thinner reduces the wave phase speed,smoothes the wave crest,sharpens the trough,and enlarges the maximum wave height for the case of propagating waves on an opposing current;while it produces the opposite effect on an aiding current. 展开更多
关键词 nonlinear water waves wave-current interaction homotopy analysis method
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Analytical Solutions of a Model for Brownian Motion in the Double Well Potential
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作者 刘爱洁 郑连存 +1 位作者 马连喜 张欣欣 《Communications in Theoretical Physics》 SCIE CAS CSCD 2015年第1期51-56,共6页
In this paper, the analytical solutions of Schrodinger equation for Brownian motion in a double well potential are acquired by the homotopy analysis method and the Adomian decomposition method. Double well potential f... In this paper, the analytical solutions of Schrodinger equation for Brownian motion in a double well potential are acquired by the homotopy analysis method and the Adomian decomposition method. Double well potential for Brownian motion is always used to obtain the solutions of Fokker-P1anck equation known as the Klein-Kramers equation, which is suitable for separation and additive Hamiltonians. In essence, we could study the random motion of Brownian particles by solving Schr6dinger equation. The anaiytical results obtained from the two different methods agree with each other well The double well potentiai is affected by two parameters, which are analyzed and discussed in details with the aid of graphical illustrations. According to the final results, the shapes of the double well potential have significant influence on the probability density function. 展开更多
关键词 Brown motion homotopy analysis method Schrodinger equation double well potential
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