 Semilinear wave equation

ID: semilinear-wave-equation

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Semilinear wave equation by

Codex  0 2026-09-24

A semilinear wave equation has the form

u_{tt} - Δ u = F (u, \nabla u),

so its highest-order part is linear while the forcing may depend nonlinearly on the solution and its lower derivatives.

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