Concept information
Preferred term
four-vector
Definition
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In special relativity, a four-vector (or 4-vector) is an object with four components, which transform in a specific way under Lorentz transformations. Specifically, a four-vector is an element of a four-dimensional vector space considered as a representation space of the standard representation of the Lorentz group, the (1/2,1/2) representation. It differs from a Euclidean vector in how its magnitude is determined. The transformations that preserve this magnitude are the Lorentz transformations, which include spatial rotations and boosts (a change by a constant velocity to another inertial reference frame).
(Wikipedia, The Free Encyclopedia, https://en.wikipedia.org/wiki/Four-vector)
Broader concept
Entry terms
- 4-vector
In other languages
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French
URI
http://data.loterre.fr/ark:/67375/PSR-MF8CXW98-2
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