Kelvin–Voigt material: Difference between revisions

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Most of his work was published as "William Thomson"; he is most commonly referred to as "Lord Kelvin".
 
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An '''affine vector field''' (sometimes '''affine collineation''' or '''affine''') is a [[projective vector field]] preserving [[geodesic]]s and preserving the [[affine parameter]]. Mathematically, this is expressed by the following condition:
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:<math>(\mathcal{L}_X g_{ab})_{;c}=0
</math>
 
==See also==
 
* [[Conformal vector field]]
* [[Curvature collineation]]
* [[Homothetic vector field]]
* [[Killing vector field]]
* [[Matter collineation]]
* [[Spacetime symmetries]]
 
{{relativity-stub}}
 
[[Category:Mathematical methods in general relativity]]

Latest revision as of 02:58, 29 December 2014

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