Timeline for Perturbation theory in general relativity using xAct
Current License: CC BY-SA 3.0
13 events
when toggle format | what | by | license | comment | |
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Sep 22, 2016 at 14:34 | history | edited | Szabolcs |
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Nov 6, 2015 at 14:42 | answer | added | George Hrabovsky | timeline score: 3 | |
Mar 17, 2015 at 10:41 | vote | accept | user1997744 | ||
Dec 7, 2014 at 10:45 | history | tweeted | twitter.com/#!/StackMma/status/541544003163136000 | ||
Dec 6, 2014 at 17:30 | answer | added | Alexey Bobrick | timeline score: 5 | |
Dec 6, 2014 at 17:17 | comment | added | user1997744 | @AlexeyBobrick: That would be brilliant, thank you! | |
Dec 6, 2014 at 17:15 | comment | added | Alexey Bobrick | Yes, I can show you an example, but with another metric, should also work for you. | |
Dec 6, 2014 at 17:08 | comment | added | user1997744 | @AlexeyBobrick: Do you know how I can actually set my metric equal to some explicit matrix? And how I can get it to compute the Ricci tensor in the perturbation equation and carry out the index summation? I can then use Collect[] to sort out the mess. | |
Dec 6, 2014 at 17:06 | comment | added | user1997744 | @AlexeyBobrick: Nevermind, it does exist, but you need to also load xCoba :) | |
Dec 6, 2014 at 17:04 | comment | added | user1997744 | @AlexeyBobrick: Are you sure? MetricCompute doesn't come up with any suggestions in Mathematica. | |
Dec 6, 2014 at 17:00 | comment | added | Alexey Bobrick | I don't have it installed at the moment, but MetricCompute command used to work for getting geometric quantities from the metric. | |
Dec 6, 2014 at 16:11 | history | edited | Dr. belisarius |
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Dec 6, 2014 at 16:04 | history | asked | user1997744 | CC BY-SA 3.0 |