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Poincaré's Lemma

Let $\wedge$ denote the Wedge Product and $D$ the Exterior Derivative. Then

\begin{displaymath}
D^2t = {\partial\over\partial x}\wedge \left({{\partial\over...
...\partial x}\wedge {\partial\over\partial x}}\right)\wedge t=0.
\end{displaymath}

See also Differential Form, Exterior Derivative, Poincaré's Holomorphic Lemma, Wedge Product




© 1996-9 Eric W. Weisstein
1999-05-25