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Error analysis of a coupled finite¿infinite element method for an exterior Poisson problem

  • Autores: Chunxiong Zheng
  • Localización: Applied numerical mathematics, ISSN-e 0168-9274, Vol. 57, Nº. 3, 2007, págs. 270-280
  • Idioma: inglés
  • DOI: 10.1016/j.apnum.2006.03.010
  • Texto completo no disponible (Saber más ...)
  • Resumen
    • An error estimate is presented for the numerical approximation to an exterior problem of the Poisson equation when a coupled finite¿infinite element method is employed in the computation. This estimate involves not only the size h and the order p of the quasiuniform finite element approximation, but also the radius R of the computational domain covered with finite elements and the number N of the radial terms of infinite elements. Numerical tests are performed, and the results partly validate the theoretical analysis.


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