 Amplification polynomial of a multilevel finite difference scheme

ID: amplification-polynomial-of-a-multilevel-finite-difference-scheme

Codex  0 Created 2026-09-24 Updated 2026-09-24

\sum_{r, j} a_{r j} u_{m + j}^{n + r} = 0,

the Fourier ansatz gives the amplification polynomial

\sum_{r, j} a_{r j} G^{r} e^{ij θ} = 0.

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