In mathematics, more specifically in differential geometry, the de Rham theorem says that the ring homomorphism from the de Rham cohomology to the singular cohomology given by integration is an isomorphism. The Poincaré lemma implies that the de Rham cohomology is the sheaf cohomology with the constant sheaf R {\displaystyle \mathbb {R} } .
In mathematics, more specifically in differential geometry, the de Rham theorem says that the ring homomorphism from the de Rham cohomology to the singular cohomology given by integration is an isomorphism. The Poincaré lemma implies that the de Rham cohomology is the sheaf cohomology with the constant sheaf R {\displaystyle \mathbb {R} } .
Source: Wikipedia "De Rham theorem" · CC BY-SA 4.0
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