Could somebody explain me what conformally flat is?(adsbygoogle = window.adsbygoogle || []).push({});

How to prove a 2D geometry as conformally flat, for example:

ds^2 = \phi(dx^2-dy^2) ; phi(x,y)

What is class of Einstein Geometry?

How to classify Einstein Geometry in 2D?

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# Conformally Flat and Einstein Geometry

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