In theoretical physics, the Weyl transformation, named after German mathematician Hermann Weyl, is a local rescaling of the metric tensor: g a b → e − 2 ω ( x ) g a b {\displaystyle g_{ab}\rightarrow e^{-2\omega (x)}g_{ab}} which produces another metric in the same conformal class. A theory or an expression invariant under this transformation is called conformally invariant, or is said to possess Weyl invariance or Weyl symmetry.
In theoretical physics, the Weyl transformation, named after German mathematician Hermann Weyl, is a local rescaling of the metric tensor: g a b → e − 2 ω ( x ) g a b {\displaystyle g_{ab}\rightarrow e^{-2\omega (x)}g_{ab}} which produces another metric in the same conformal class. A theory or an expression invariant under this transformation is called conformally invariant, or is said to possess Weyl invariance or Weyl symmetry.
Source: Wikipedia "Weyl transformation" · CC BY-SA 4.0
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