Numerical Study of Multi-Term Time-Fractional Sub-Diffusion Equation Using Hybrid L1 Scheme with Quintic Hermite Splines

Anomalous diffusion of particles has been described by the time-fractional reaction–diffusion equation. A hybrid formulation of numerical technique is proposed to solve the time-fractional-order reaction–diffusion (FRD) equation numerically. The technique comprises the semi-discretization of the tim...

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Main Authors: Priyanka Priyanka, Shelly Arora, Saroj Sahani, Sharandeep Singh
Format: Article
Language:English
Published: MDPI AG 2024-11-01
Series:Mathematical and Computational Applications
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Online Access:https://www.mdpi.com/2297-8747/29/6/100
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author Priyanka Priyanka
Shelly Arora
Saroj Sahani
Sharandeep Singh
author_facet Priyanka Priyanka
Shelly Arora
Saroj Sahani
Sharandeep Singh
author_sort Priyanka Priyanka
collection DOAJ
description Anomalous diffusion of particles has been described by the time-fractional reaction–diffusion equation. A hybrid formulation of numerical technique is proposed to solve the time-fractional-order reaction–diffusion (FRD) equation numerically. The technique comprises the semi-discretization of the time variable using an L1 finite-difference scheme and space discretization using the quintic Hermite spline collocation method. The hybrid technique reduces the problem to an iterative scheme of an algebraic system of equations. The stability analysis of the proposed numerical scheme and the optimal error bounds for the approximate solution are also studied. A comparative study of the obtained results and an error analysis of approximation show the efficiency, accuracy, and effectiveness of the technique.
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spelling doaj-art-b1a9a05bf12e473d80694d23010dc1682024-12-27T14:38:24ZengMDPI AGMathematical and Computational Applications1300-686X2297-87472024-11-0129610010.3390/mca29060100Numerical Study of Multi-Term Time-Fractional Sub-Diffusion Equation Using Hybrid L1 Scheme with Quintic Hermite SplinesPriyanka Priyanka0Shelly Arora1Saroj Sahani2Sharandeep Singh3Department of Mathematics, Punjabi University, Patiala 147002, IndiaDepartment of Mathematics, Punjabi University, Patiala 147002, IndiaDepartment of Mathematics, South Asian University, New Delhi 110068, IndiaDepartment of Mathematical and Statistical Sciences, Faculty of Science, University of Alberta, Edmonton, AB T6G2G1, CanadaAnomalous diffusion of particles has been described by the time-fractional reaction–diffusion equation. A hybrid formulation of numerical technique is proposed to solve the time-fractional-order reaction–diffusion (FRD) equation numerically. The technique comprises the semi-discretization of the time variable using an L1 finite-difference scheme and space discretization using the quintic Hermite spline collocation method. The hybrid technique reduces the problem to an iterative scheme of an algebraic system of equations. The stability analysis of the proposed numerical scheme and the optimal error bounds for the approximate solution are also studied. A comparative study of the obtained results and an error analysis of approximation show the efficiency, accuracy, and effectiveness of the technique.https://www.mdpi.com/2297-8747/29/6/100multi-term fractional derivativeCaputo derivativeL1-schemequintic Hermite splinecollocation method
spellingShingle Priyanka Priyanka
Shelly Arora
Saroj Sahani
Sharandeep Singh
Numerical Study of Multi-Term Time-Fractional Sub-Diffusion Equation Using Hybrid L1 Scheme with Quintic Hermite Splines
Mathematical and Computational Applications
multi-term fractional derivative
Caputo derivative
L1-scheme
quintic Hermite spline
collocation method
title Numerical Study of Multi-Term Time-Fractional Sub-Diffusion Equation Using Hybrid L1 Scheme with Quintic Hermite Splines
title_full Numerical Study of Multi-Term Time-Fractional Sub-Diffusion Equation Using Hybrid L1 Scheme with Quintic Hermite Splines
title_fullStr Numerical Study of Multi-Term Time-Fractional Sub-Diffusion Equation Using Hybrid L1 Scheme with Quintic Hermite Splines
title_full_unstemmed Numerical Study of Multi-Term Time-Fractional Sub-Diffusion Equation Using Hybrid L1 Scheme with Quintic Hermite Splines
title_short Numerical Study of Multi-Term Time-Fractional Sub-Diffusion Equation Using Hybrid L1 Scheme with Quintic Hermite Splines
title_sort numerical study of multi term time fractional sub diffusion equation using hybrid l1 scheme with quintic hermite splines
topic multi-term fractional derivative
Caputo derivative
L1-scheme
quintic Hermite spline
collocation method
url https://www.mdpi.com/2297-8747/29/6/100
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