线的数值模拟方法与伪谱法求解空间左右阶导数的时空偏微分方程

M. Ali, Mohammed K Almoaeet, Basim Albuohimad
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引用次数: 0

摘要

目的在定义移位雅可比函数的基础上,利用新的公式推导出平移雅可比函数的左阶导数和右阶导数的定理。设计/方法/方法本文将线法(MOL)与伪谱法相结合,用于求解具有空间左、右分数阶导数的时空偏微分方程。然后,利用并置节点将其约简为常微分方程组,并利用ode45 MATLAB工具箱进行求解。将MOL方法与伪谱离散化方法相结合,将依赖于空间的分数阶偏微分方程转化为常微分方程组。独创性/价值本文有助于获得具有特殊参数a, b的移位雅可比函数基的选择,并使作者有机会准确地获得该基的左右分式微分矩阵。本文给出了示例的结果。作者发现,该方法是有效的,提供准确的结果,作者发现在科学,技术,工程和数学领域的成功具有重要意义。
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Numerical simulation method of lines together with a pseudospectral method for solving space-time partial differential equations with space left- and right-sided fractional derivative
PurposeThis study aims to use new formula derived based on the shifted Jacobi functions have been defined and some theorems of the left- and right-sided fractional derivative for them have been presented.Design/methodology/approachIn this article, the authors apply the method of lines (MOL) together with the pseudospectral method for solving space-time partial differential equations with space left- and right-sided fractional derivative (SFPDEs). Then, using the collocation nodes to reduce the SFPDEs to the system of ordinary differential equations, which can be solved by the ode45 MATLAB toolbox.FindingsApplying the MOL method together with the pseudospectral discretization method converts the space-dependent on fractional partial differential equations to the system of ordinary differential equations.Originality/valueThis paper contributes to gain choosing the shifted Jacobi functions basis with special parameters a, b and give the authors this opportunity to obtain the left- and right-sided fractional differentiation matrices for this basis exactly. The results of the examples are presented in this article. The authors found that the method is efficient and provides accurate results, and the authors found significant implications for success in the science, technology, engineering and mathematics domain.
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来源期刊
Arab Journal of Mathematical Sciences
Arab Journal of Mathematical Sciences Mathematics-Mathematics (all)
CiteScore
1.20
自引率
0.00%
发文量
17
审稿时长
8 weeks
期刊最新文献
On primality of Cartesian product of graphs Foundational aspects of a new matrix holomorphic structure L2-convergence of Yosida approximation for semi-linear backward stochastic differential equation with jumps in infinite dimension Structure theorem for Jordan algebra bundles Determinantal polynomials and the base polynomial of a square matrix over a finite field
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