can anyone please give me an example of how to calculate the homothetic vector field of(adsbygoogle = window.adsbygoogle || []).push({});

say

a Bianchi Type I exact solution of the Einstein field equation

(refer to dynamical systems in cosmology by Wainwright and Ellis chapter 9)

note : I know already how to calculate the killing vector field of a homogeneous, isotropic line element

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# Homothetic vector fields?

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