An SBP-SAT FDTD subgridding method couples an embedded fine grid to one surrounding coarse domain without multi-block splits, with stability argued via discrete energy analysis.
An Unsymmetric FDTD Subgridding Algorithm With Unconditional Stability
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A Stable SBP-SAT FDTD Subgridding Method Without Region Split
An SBP-SAT FDTD subgridding method couples an embedded fine grid to one surrounding coarse domain without multi-block splits, with stability argued via discrete energy analysis.