Volume 13, Issue 4
Numerical Schemes for Time-Space Fractional Vibration Equations

Jingna Zhang, Temirkhan S. Aleroev, Yifa Tang & Jianfei Huang

Adv. Appl. Math. Mech., 13 (2021), pp. 806-826.

Published online: 2021-04

Preview Purchase PDF 21 6157
Export citation
  • Abstract

In this paper, we present a numerical scheme and an alternating direction implicit (ADI) scheme for the one-dimensional and two-dimensional time-space fractional vibration equations (FVEs), respectively. Firstly, the considered time-space FVEs are equivalently transformed into their partial integro-differential forms with the classical first order integrals and the Riemann-Liouville derivative. This transformation can weaken the smoothness requirement in time when discretizing the partial integro-differential problems. Secondly, we use the Crank-Nicolson technique combined with the midpoint formula, the weighted and shifted Grünwald difference formula and the second order convolution quadrature formula to deal with the temporal discretizations. Meanwhile,  the classical central difference formula and fractional central difference formula are applied to approximate the second order derivative and the Riesz derivative in spatial direction, respectively. Further, an ADI scheme is constructed for the two-dimensional case. Then, the convergence and unconditional stability of the proposed schemes are proved rigorously. Both of the schemes are convergent with the second order accuracy in time and space. Finally, two numerical examples are given to support the theoretical results.

  • Keywords

Time-space fractional vibration equations, ADI scheme, stability, convergence.

  • AMS Subject Headings

65M06, 65M12, 35R1

  • Copyright

COPYRIGHT: © Global Science Press

  • Email address
  • BibTex
  • RIS
  • TXT
@Article{AAMM-13-806, author = {Jingna Zhang , and Temirkhan S. Aleroev , and Yifa Tang , and Jianfei Huang , }, title = {Numerical Schemes for Time-Space Fractional Vibration Equations}, journal = {Advances in Applied Mathematics and Mechanics}, year = {2021}, volume = {13}, number = {4}, pages = {806--826}, abstract = {

In this paper, we present a numerical scheme and an alternating direction implicit (ADI) scheme for the one-dimensional and two-dimensional time-space fractional vibration equations (FVEs), respectively. Firstly, the considered time-space FVEs are equivalently transformed into their partial integro-differential forms with the classical first order integrals and the Riemann-Liouville derivative. This transformation can weaken the smoothness requirement in time when discretizing the partial integro-differential problems. Secondly, we use the Crank-Nicolson technique combined with the midpoint formula, the weighted and shifted Grünwald difference formula and the second order convolution quadrature formula to deal with the temporal discretizations. Meanwhile,  the classical central difference formula and fractional central difference formula are applied to approximate the second order derivative and the Riesz derivative in spatial direction, respectively. Further, an ADI scheme is constructed for the two-dimensional case. Then, the convergence and unconditional stability of the proposed schemes are proved rigorously. Both of the schemes are convergent with the second order accuracy in time and space. Finally, two numerical examples are given to support the theoretical results.

}, issn = {2075-1354}, doi = {https://doi.org/10.4208/aamm.OA-2020-0066}, url = {http://global-sci.org/intro/article_detail/aamm/18752.html} }
TY - JOUR T1 - Numerical Schemes for Time-Space Fractional Vibration Equations AU - Jingna Zhang , AU - Temirkhan S. Aleroev , AU - Yifa Tang , AU - Jianfei Huang , JO - Advances in Applied Mathematics and Mechanics VL - 4 SP - 806 EP - 826 PY - 2021 DA - 2021/04 SN - 13 DO - http://doi.org/10.4208/aamm.OA-2020-0066 UR - https://global-sci.org/intro/article_detail/aamm/18752.html KW - Time-space fractional vibration equations, ADI scheme, stability, convergence. AB -

In this paper, we present a numerical scheme and an alternating direction implicit (ADI) scheme for the one-dimensional and two-dimensional time-space fractional vibration equations (FVEs), respectively. Firstly, the considered time-space FVEs are equivalently transformed into their partial integro-differential forms with the classical first order integrals and the Riemann-Liouville derivative. This transformation can weaken the smoothness requirement in time when discretizing the partial integro-differential problems. Secondly, we use the Crank-Nicolson technique combined with the midpoint formula, the weighted and shifted Grünwald difference formula and the second order convolution quadrature formula to deal with the temporal discretizations. Meanwhile,  the classical central difference formula and fractional central difference formula are applied to approximate the second order derivative and the Riesz derivative in spatial direction, respectively. Further, an ADI scheme is constructed for the two-dimensional case. Then, the convergence and unconditional stability of the proposed schemes are proved rigorously. Both of the schemes are convergent with the second order accuracy in time and space. Finally, two numerical examples are given to support the theoretical results.

Jingna Zhang, Temirkhan S. Aleroev, Yifa Tang & Jianfei Huang. (1970). Numerical Schemes for Time-Space Fractional Vibration Equations. Advances in Applied Mathematics and Mechanics. 13 (4). 806-826. doi:10.4208/aamm.OA-2020-0066
Copy to clipboard
The citation has been copied to your clipboard