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Tagged with differentiation spacetime-dimensions
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What happens if we differentiate spacetime with respect to time? [closed]
Essentially, what would differentiating space-time with respect to time provide us with? What are the constraints associated with such operations? Is it possible to obtain a useful physical quantity ...
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Higher dimension derivatives
In the case of higher dimensions (e.g. 4+1 dimensions) how would the 5 derivative ($\partial_5$) change?
For example if $\\X=(x^{\mu},z)$, would the 5 derivative change as $$\partial_5\partial^5X=\...
