Volume 12, Issue 3
A Priori Error Estimates for Finite Volume Element Approximations to Second order Linear Hyperbolic Integro-Differential Equations

Samir Karaa & Amiya K. Pani

DOI:

Int. J. Numer. Anal. Mod., 12 (2015), pp. 401-429

Published online: 2015-12

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  • Abstract

In this paper, both semidiscrete and completely discrete finite volume element methods (FVEMs) are analyzed for approximating solutions of a class of linear hyperbolic integrodifferential equations in a two-dimensional convex polygonal domain. The effect of numerical quadrature is also examined. In the semidiscrete case, optimal error estimates in L∞(L²) and L∞(H¹) norms are shown to hold with minimal regularity assumptions on the initial data, whereas quasi-optimal estimate is derived in L∞(L∞) norm under higher regularity on the data. Based on a second order explicit method in time, a completely discrete scheme is examined and optimal error estimates are established with a mild condition on the space and time discretizing parameters. Finally, some numerical experiments are conducted which confirm the theoretical order of convergence.

  • Keywords

Finite volume element hyperbolic integro-differential equation semidiscrete method numerical quadrature Ritz-Volterra projection completely discrete scheme optimal error estimates

  • AMS Subject Headings

65N30 65N15

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COPYRIGHT: © Global Science Press

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@Article{IJNAM-12-401, author = {Samir Karaa and Amiya K. Pani}, title = {A Priori Error Estimates for Finite Volume Element Approximations to Second order Linear Hyperbolic Integro-Differential Equations}, journal = {International Journal of Numerical Analysis and Modeling}, year = {2015}, volume = {12}, number = {3}, pages = {401--429}, abstract = {In this paper, both semidiscrete and completely discrete finite volume element methods (FVEMs) are analyzed for approximating solutions of a class of linear hyperbolic integrodifferential equations in a two-dimensional convex polygonal domain. The effect of numerical quadrature is also examined. In the semidiscrete case, optimal error estimates in L∞(L²) and L∞(H¹) norms are shown to hold with minimal regularity assumptions on the initial data, whereas quasi-optimal estimate is derived in L∞(L∞) norm under higher regularity on the data. Based on a second order explicit method in time, a completely discrete scheme is examined and optimal error estimates are established with a mild condition on the space and time discretizing parameters. Finally, some numerical experiments are conducted which confirm the theoretical order of convergence.}, issn = {2617-8710}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/ijnam/496.html} }
TY - JOUR T1 - A Priori Error Estimates for Finite Volume Element Approximations to Second order Linear Hyperbolic Integro-Differential Equations AU - Samir Karaa & Amiya K. Pani JO - International Journal of Numerical Analysis and Modeling VL - 3 SP - 401 EP - 429 PY - 2015 DA - 2015/12 SN - 12 DO - http://dor.org/ UR - https://global-sci.org/intro/article_detail/ijnam/496.html KW - Finite volume element KW - hyperbolic integro-differential equation KW - semidiscrete method KW - numerical quadrature KW - Ritz-Volterra projection KW - completely discrete scheme KW - optimal error estimates AB - In this paper, both semidiscrete and completely discrete finite volume element methods (FVEMs) are analyzed for approximating solutions of a class of linear hyperbolic integrodifferential equations in a two-dimensional convex polygonal domain. The effect of numerical quadrature is also examined. In the semidiscrete case, optimal error estimates in L∞(L²) and L∞(H¹) norms are shown to hold with minimal regularity assumptions on the initial data, whereas quasi-optimal estimate is derived in L∞(L∞) norm under higher regularity on the data. Based on a second order explicit method in time, a completely discrete scheme is examined and optimal error estimates are established with a mild condition on the space and time discretizing parameters. Finally, some numerical experiments are conducted which confirm the theoretical order of convergence.
Samir Karaa & Amiya K. Pani. (1970). A Priori Error Estimates for Finite Volume Element Approximations to Second order Linear Hyperbolic Integro-Differential Equations. International Journal of Numerical Analysis and Modeling. 12 (3). 401-429. doi:
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