What is "Riemannian" geometry and why is the geometry of space-time considered "Riemannian" and not Euclidean?

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Firoj
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What is "Riemannian" geometry and why is the geometry of space-time considered "Riemannian" and not Euclidean?

Post autor: Firoj » 08 wrz 2020, 00:57

Hello everyone,,

From what I understand, "Riemannian Geometry" is an integral part of Einstein's General Theory of Relativity. But what exactly is it? And why is the fabric of space time considered Riemannian by nature?

Thanks!