Transfinite mean value interpolation in general dimension

  • Authors:
  • Solveig Bruvoll;Michael S. Floater

  • Affiliations:
  • Centre of Mathematics for Applications, Department of Informatics, University of Oslo, PO Box 1053, Blindern, 0316 Oslo, Norway;Centre of Mathematics for Applications, Department of Informatics, University of Oslo, PO Box 1053, Blindern, 0316 Oslo, Norway

  • Venue:
  • Journal of Computational and Applied Mathematics
  • Year:
  • 2010

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Abstract

Mean value interpolation is a simple, fast, linearly precise method of smoothly interpolating a function given on the boundary of a domain. For planar domains, several properties of the interpolant were established in a recent paper by Dyken and the second author, including: sufficient conditions on the boundary to guarantee interpolation for continuous data; a formula for the normal derivative at the boundary; and the construction of a Hermite interpolant when normal derivative data is also available. In this paper we generalize these results to domains in arbitrary dimension.