Simulation of anisotropic wave propagation based upon a spectral element method

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A finite element method enriched for wave propagation problems (2012, unknown): “[29] [30] [31] [32] [33] [34] [35] [36] and the spectral finite element method, see Refs.”
An arbitrary high-order discontinuous Galerkin method for elastic waves on unstructured meshes - IV. Anisotropy (2007, methodology): “The computational domain Ω = [−32.5; 32.5]cm × [−32.5; 32.5]cm is discretized by 37944 triangles with an average edge length of 0.5cm, equal to the edge length of the square shaped elements used by Komatitsch et al. (2000).”
An unsplit convolutional perfectly matched layer improved at grazing incidence for the seismic wave equation (2007, methodology): “To illustrate this, we study two transversely isotropic crystals with a vertical symmetry axis, apatite and zinc, in the ultrasonic frequency range e.g., Komatitsch et al., 2000 .”
Wave propagation near a fluid-solid interface : A spectral-element approach (2000, background): “We restrict ourselves to isotropic materials, although SEM can handle anisotropic materials accurately (Seriani et al., 1995; Komatitsch et al., 2000).”