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by Xmd5a
15 days ago
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> Why is this conserved? Because ∇ᵤ(Tᵘᵥξᵥ) = (∇ᵤ Tᵘᵥ)ξᵥ + Tᵘᵥ(∇ᵤ ξᵥ). Interesting. > This is an example of a topic that unstructured self study would likely skip. I'm not studying physics – could you take a look at some unstructured reflexions I wrote a couple weeks ago? https://news.ycombinator.com/item?id=48699125 |
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