Generalized Hermite Spectral Method and its Applications to Problems in Unbounded Domains

  • Authors:
  • Xin-min Xiang;Zhong-qing Wang

  • Affiliations:
  • xiangxm@shnu.edu.cn;zqwang@shnu.edu.cn

  • Venue:
  • SIAM Journal on Numerical Analysis
  • Year:
  • 2010

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Abstract

In this paper, we develop a spectral method based on generalized Hermite functions with weight $\chi(x)\equiv1$. We also establish some basic results on generalized Hermite orthogonal approximations, which play an important role in spectral methods. As examples, the generalized Ginzburg-Landau equation in a population problem and an elliptic equation with a harmonic potential are considered. Related spectral schemes are proposed, and their convergence is proved. Numerical results demonstrate the spectral accuracy of this approach.