Haar measure

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We define a parametrization $g(\xi)\,$ , together with a weight function $\rho_g(\xi)\,$ such that the following equation holds

$\int dg f(g) = \int dg f(s^{-1}g)\,$

where $s\in G\,$ and $dg = \rho_g(\xi)d\xi \,$ provides an invariant measure.

See also

rearrangement lemma (Group theory)

Retrieved from "http://www.mathematics.thetangentbundle.net/wiki/Lie_groups/Haar_measure"

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