Introduces degenerate 4D hole-like elements to handle topology changes (2-3, 3-2, 4-4 flips) in direct ALE ADER-DG on 3D moving meshes while claiming conservation, GCL compliance, and maintained convergence order.
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On the treatment of topology changes on 3D polyhedral moving meshes via 4D space-time hole-like elements in direct ALE ADER-DG methods
Introduces degenerate 4D hole-like elements to handle topology changes (2-3, 3-2, 4-4 flips) in direct ALE ADER-DG on 3D moving meshes while claiming conservation, GCL compliance, and maintained convergence order.