期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
A New Scheme of the ARA Transform for Solving Fractional-Order Waves-Like Equations Involving Variable Coefficients
1
作者 Yu-Ming Chu sobia sultana +2 位作者 Shazia Karim Saima Rashid Mohammed Shaaf Alharthi 《Computer Modeling in Engineering & Sciences》 SCIE EI 2024年第1期761-791,共31页
The goal of this research is to develop a new,simplified analytical method known as the ARA-residue power series method for obtaining exact-approximate solutions employing Caputo type fractional partial differential e... The goal of this research is to develop a new,simplified analytical method known as the ARA-residue power series method for obtaining exact-approximate solutions employing Caputo type fractional partial differential equations(PDEs)with variable coefficient.ARA-transform is a robust and highly flexible generalization that unifies several existing transforms.The key concept behind this method is to create approximate series outcomes by implementing the ARA-transform and Taylor’s expansion.The process of finding approximations for dynamical fractional-order PDEs is challenging,but the ARA-residual power series technique magnifies this challenge by articulating the solution in a series pattern and then determining the series coefficients by employing the residual component and the limit at infinity concepts.This approach is effective and useful for solving a massive class of fractional-order PDEs.Five appealing implementations are taken into consideration to demonstrate the effectiveness of the projected technique in creating solitary series findings for the governing equations with variable coefficients.Additionally,several visualizations are drawn for different fractional-order values.Besides that,the estimated findings by the proposed technique are in close agreement with the exact outcomes.Finally,statistical analyses further validate the efficacy,dependability and steady interconnectivity of the suggested ARA-residue power series approach. 展开更多
关键词 ARA-transform Caputo fractional derivative residue-power seriesmethod analytical solutions statistical analysis
下载PDF
Dynamical Analysis of the Stochastic COVID-19 Model Using Piecewise Differential Equation Technique 被引量:1
2
作者 Yu-Ming Chu sobia sultana +1 位作者 Saima Rashid Mohammed Shaaf Alharthi 《Computer Modeling in Engineering & Sciences》 SCIE EI 2023年第12期2427-2464,共38页
Various data sets showing the prevalence of numerous viral diseases have demonstrated that the transmission is not truly homogeneous.Two examples are the spread of Spanish flu and COVID-19.The aimof this research is t... Various data sets showing the prevalence of numerous viral diseases have demonstrated that the transmission is not truly homogeneous.Two examples are the spread of Spanish flu and COVID-19.The aimof this research is to develop a comprehensive nonlinear stochastic model having six cohorts relying on ordinary differential equations via piecewise fractional differential operators.Firstly,the strength number of the deterministic case is carried out.Then,for the stochastic model,we show that there is a critical number RS0 that can predict virus persistence and infection eradication.Because of the peculiarity of this notion,an interesting way to ensure the existence and uniqueness of the global positive solution characterized by the stochastic COVID-19 model is established by creating a sequence of appropriate Lyapunov candidates.Adetailed ergodic stationary distribution for the stochastic COVID-19 model is provided.Our findings demonstrate a piecewise numerical technique to generate simulation studies for these frameworks.The collected outcomes leave no doubt that this conception is a revolutionary doorway that will assist mankind in good perspective nature. 展开更多
关键词 COVID-19 epidemic model piecewise fractional differential operators piecewise numerical scheme EXTINCTION ergodicity and stationary distribution
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部