• Corpus ID: 246210345

Approximating moving point sources in hyperbolic partial differential equations

  title={Approximating moving point sources in hyperbolic partial differential equations},
  author={Ylva Rydin and Martin Almquist},
We consider point sources in hyperbolic equations discretized by finite differences. If the source is stationary, appropriate source discretization has been shown to preserve the accuracy of the finite difference method. Moving point sources, however, pose two challenges that do not appear in the stationary case. First, the discrete source must not excite modes that propagate with the source velocity. Second, the discrete source spectrum amplitude must be independent of the source position. We… 


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