An efficient approach to the numerical verification for solutions of elliptic differential equations

Mitsuhiro T. Nakao, Yoshitaka Watanabe

    Research output: Contribution to journalArticlepeer-review

    18 Citations (Scopus)

    Abstract

    The authors and their colleagues have developed numerical verification methods for solutions of second-order elliptic boundary value problems based on the infinite-dimensional fixed-point theorem using the Newton-like operator with appropriate approximation and constructive a priori error estimates for Poisson's equations. Many verification results show that the authors' methods are sufficiently useful when the equation has no first-order derivative. However, in the case that the equation includes the term of a first-order derivative, there is a possibility that the verification algorithm does not work even though we adopt a sufficiently accurate approximation subspace. The purpose of this paper is to propose an alternative method to overcome this difficulty. Numerical examples which confirm the effectiveness of the new method are presented.

    Original languageEnglish
    Pages (from-to)311-323
    Number of pages13
    JournalNumerical Algorithms
    Volume37
    Issue number1-4 SPEC. ISS.
    DOIs
    Publication statusPublished - Dec 2004

    All Science Journal Classification (ASJC) codes

    • Applied Mathematics

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