Numerical experiments confirm that a spectral mixed DG method on anisotropic geometric meshes is inf-sup stable with mild degree dependence and converges exponentially for 3D elasticity with edge and corner singularities, including near the incompressible limit.
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Stability and Convergence of Spectral Mixed Discontinuous Galerkin Methods for 3D Linear Elasticity on Anisotropic Geometric Meshes
Numerical experiments confirm that a spectral mixed DG method on anisotropic geometric meshes is inf-sup stable with mild degree dependence and converges exponentially for 3D elasticity with edge and corner singularities, including near the incompressible limit.