Multigrid Method for Solution of 3D Helmholtz Equation Based on HOC Schemes

<table>(a) The approximate solution for 2D. (b) The approximate solution for 3D. ((c) and (d)) The nonzero entries in block tridiagonal matrices, nz are the number of nodes in 2D and 3D cases.</table>

Abstract and Applied Analysis

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Figure 5

Figure 5: Multigrid Method for Solution of 3D Helmholtz Equation Based on HOC Schemes 