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New approximations of space- time fractional Fokker-Planck equations | ||
| Computational Methods for Differential Equations | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 01 مهر 1401 اصل مقاله (5.2 MB) | ||
| نوع مقاله: Research Paper | ||
| شناسه دیجیتال (DOI): 10.22034/cmde.2022.51295.2134 | ||
| نویسندگان | ||
Brajesh Kumar Singh   ؛ Anil Kumar؛ Mukesh Gupta
| ||
| School of Physical and Decision Sciences, Department of Mathematics, Babasaheb Bhimrao Ambedkar University Lucknow-226025 (UP), India. | ||
| چکیده | ||
| The present study focus on the two new hybrid methods: variational iteration J-transform technique (J-VIT) and J-transform method with optimal homotopy analysis (OHAJTM) for analytical assessment of space-time fractional Fokker-Planck equations (STF-FPE), appearing in many realistic physical situations, e.g., in ultra-slow kinetics, Brownian motion of particles, anomalous diffusion, polymerases of Ribonucleic acid, deoxyribonucleic acid, continuous random movement and formation of wave patterns. OHAJTM is developed via optimal homotopy analysis after implementing the properties of J-transform while (J-VIT) is produced by implementing properties of the J-transform and the theory of variational iteration. Banach approach is utilized to analyze convergence of these methods. In addition, it is demonstrated that J-VIT is T-stable. Computed new approximations are reported as closed form expression of Mittag-Leffler function, and in addition, effectiveness/validity of the proposed new approximations is demonstrated via three test problems of STF-FPE by computing the error norms: L2 and absolute errors. The numerical assessment demonstrates that the developed techniques perform better for STF-FPE and for a given iteration, and OHAJTM produces new approximations with better accuracy as compared to J-VIT as well as the techniques developed recently. | ||
| کلیدواژه‌ها | ||
| Fractional Fokker-Planck equations(STF-FPE)؛ $mathbb{J}$- transform؛ optimal homotopy analysis $mathbb{J}$- transform method~(${}_O$HA$mathbb{J}$TM)؛ variational calculus؛ variational iteration technique and $mathbb{J}$-VIT | ||
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آمار تعداد مشاهده مقاله: 46 تعداد دریافت فایل اصل مقاله: 55 |
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