ISOTROPIC FINITE DIFFERENCE DISCRETIZATION OF LAPLACIAN OPERATOR

Hyun Geun Lee, Seokjun Ham, Junseok Kim*

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    In this paper, we review and investigate isotropic finite difference discretizations of the two-dimensional (2D) and three-dimensional (3D) Laplacian operators. In particular, we propose benchmark functions to quantitatively evaluate the isotropy of the discrete Laplacian operators in 2D and 3D spaces. The benchmark functions have analytic 2D and 3D Laplacian solutions so that we can exactly compute the errors between the numerical and analytic solutions.

    Original languageEnglish
    Pages (from-to)259-274
    Number of pages16
    JournalApplied and Computational Mathematics
    Volume22
    Issue number2
    DOIs
    Publication statusPublished - 2023

    Bibliographical note

    Funding Information:
    H.G. Lee was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022R1A2C1011708). The corresponding author (J.S. Kim) was supported by the National Research Foundation (NRF), Korea, under project BK21 FOUR. The authors are grateful to the reviewers whose valuable suggestions and comments significantly improved the quality of this paper.

    Publisher Copyright:
    © 2023, Institute of Applied Mathematics of Baku State University. All rights reserved.

    Keywords

    • Discrete Laplacian Operator
    • Finite Difference Method
    • Isotropic Discretization
    • Isotropic Stencil

    ASJC Scopus subject areas

    • Computational Mathematics
    • Applied Mathematics

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