If in some frame I define a geometrical object as having 3 space components, how do I then find the time component component it must have?(adsbygoogle = window.adsbygoogle || []).push({});

I've defined a geometrical object in some frame as having components Ax, Ay, Az defined by:

d/dx Ax = Fx, d/dx Ay = Fy, d/dy Ay = Fy

I require that for any frame:

1/gamma d/dx'A'x' = Fx, d/dy' A'y' = Fy, d/dy' A'y' = Fy

Is it possible to define the form the time component A0 takes?

Thanks.

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# Four-vector from 3 space components?

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