2 papers
math.NA2022
Approximating moving point sources in hyperbolic partial differential equations
Ylva Ljungberg Rydin, 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 a…
math.NA2020
Elastic wave propagation in anisotropic solids using energy-stable finite differences with weakly enforced boundary and interface conditions
Martin Almquist, Eric M. Dunham
Summation-by-parts (SBP) finite difference methods have several desirable properties for second-order wave equations. They combine the computational efficiency of narrow-stencil fi…