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A set of numbers used to quantify location in space.

2 votes
2 answers
546 views

Stress-energy tensor and dependence on coordinate system in general relativity

In Wikipedia, components of stress-energy tensor $T^{\alpha \beta}$ is defined as flux of $\alpha$th component of momentum vector across a surface with $x^{\beta}$ coordinate. What I don't exactly un …
Master of Life's user avatar
1 vote
3 answers
500 views

Do the equations of general relativity apply to all coordinate systems?

I was inspired to ask the question, after seeing this: http://www.mathpages.com/home/kmath588/kmath588.htm A short passage from the paper relating to the question above: It’s possible to take a d …
Master of Life's user avatar