Modified homotopy methods for generalized fractional perturbed Zakharov–Kuznetsov equation in dusty plasma

Advances in Difference Equations

article

Akinyemi, Lanre¹  Şenol, Mehmet²  Huseen, Shaheed N.³ 

[1] Department of Mathematics, Prairie View A&M University;Department of Mathematics, Nevşehir Hacı Bektaş Veli University;Mathematics Department, Faculty of Computer Science and Mathematics, University of Thi-Qar

关键词: Laplace transform;    δ -homotopy transform perturbation method;    q-homotopy analysis transform method;    Perturbed Zakharov–Kuznetsov equation;   

DOI  :  10.1186/s13662-020-03208-5

学科分类：航空航天科学

来源: SpringerOpen

【 摘 要 】

We propose a new modification of homotopy perturbation method (HPM) called the δ-homotopy perturbation transform method (δ-HPTM). This modification consists of the Laplace transform method, HPM, and a control parameter δ. This control convergence parameter δ in this new modification helps in adjusting and controlling the convergence region of the series solution and overcome some limitations of HPM and HPTM. The δ-HPTM and q-homotopy analysis transform method (q-HATM) are considered to study the generalized time-fractional perturbed$(3+1)$ -dimensional Zakharov–Kuznetsov equation with Caputo fractional time derivative. This equation describes nonlinear dust-ion-acoustic waves in the magnetized two-ion-temperature dusty plasmas. The selection of an appropriate value of δ in δ-HPTM and the auxiliary parameters n and ħ in q-HATM gives a guaranteed convergence of series solution, but the difference between the two techniques is that the embedding parameter p in δ-HPTM varies from zero to nonzero δ, whereas the embedding parameter q in q-HATM varies from zero to$\frac{1}{n}, n\geq{1}$ . We examine the effect of fractional order on the considered problem and present the error estimate when compared with exact solution. The outcomes reveal complete reliability and efficiency of the proposed algorithm for solving various types of physical models arising in sciences and engineering. Furthermore, we present the convergence and error analysis of the two methods.

【 授权许可】

CC BY