Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 68009

The special theory of relativity describes the motion and dynamics of objects moving at significant fractions of the speed of light.

0 votes
1 answer
157 views

Covariance of relativistic free particle Lagrangian under Lorentz transformation

How does the Lagrangian of a free particle: $$ L = - \sqrt{1- \Big(\frac{dx}{dt}\Big)^{2}} $$ transform under the co-ordinate transformation $(q,\tau)$? $$ q = \cosh(\psi)x + \sinh(\psi)t, $ …
2 votes

Covariance of relativistic free particle Lagrangian under Lorentz transformation

I think while doing the calculations, I have found the answer. @GK gave an answer but I think there is a subtle mistake in that approach because both q and $\tau$ are coupled transformations of x and …
Astronomer's user avatar