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High-Order Energy and Linear Momentum Conserving Methods for the Klein-Gordon Equation

Author

Listed:
  • He Yang

    (Department of Mathematics, Augusta University, Augusta, GA 30912, USA)

Abstract

The Klein-Gordon equation is a model for free particle wave function in relativistic quantum mechanics. Many numerical methods have been proposed to solve the Klein-Gordon equation. However, efficient high-order numerical methods that preserve energy and linear momentum of the equation have not been considered. In this paper, we propose high-order numerical methods to solve the Klein-Gordon equation, present the energy and linear momentum conservation properties of our numerical schemes, and show the optimal error estimates and superconvergence property. We also verify the performance of our numerical schemes by some numerical examples.

Suggested Citation

  • He Yang, 2018. "High-Order Energy and Linear Momentum Conserving Methods for the Klein-Gordon Equation," Mathematics, MDPI, vol. 6(10), pages 1-17, October.
    • Handle: RePEc:gam:jmathe:v:6:y:2018:i:10:p:200-:d:175102
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