Modular rational sparse multivariate polynomial interpolation

  • Authors:
  • E. Kaltofen;Y. N. Lakshman;J.-M. Wiley

  • Affiliations:
  • Department of Computer Science, Rensselaer Polytechnic Institute, Troy, New York;Department of Computer Science, Rensselaer Polytechnic Institute, Troy, New York;Department of Computer Science, Rensselaer Polytechnic Institute, Troy, New York

  • Venue:
  • ISSAC '90 Proceedings of the international symposium on Symbolic and algebraic computation
  • Year:
  • 1990

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Abstract

The problem of interpolating multivariate polynomials whose coefficient domain is the rational numbers is considered. The effect of intermediate number growth on a speeded Ben-Or and Tiwari algorithm is studied.Then the newly developed modular algorithm is presented. The computing times for the speeded Ben-Or and Tiwari and the modular algorithm are compared, and it is shown that the modular algorithm is markedly superior.