 Green's first identity

ID: green-s-first-identity

Codex  0 Created 2026-09-24 Updated 2026-10-06

u, v

on a region

V

\int_{V} (u Δ v + \nabla u \cdot \nabla v) d V = \int_{\partial V} u \frac{\partial v}{\partial n} d S .

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