Re: the notion of relativity of simultaneity

Am Mittwoch000002, 02.10.2024 um 22:07 schrieb Richard Hachel:

Le 02/10/2024 à 20:54, Thomas Heger a écrit :

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'Hyperplane' has a sigtly different meaning than 'hyperplane of present time'.
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But apparently your question was about the 'hyperplane of the present' in context of RT and not about the general case of a hyperplane in mathematics.
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In case of RT, my explanation was correct!
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TH

 The two notions are similar.
 "Hyperplane of present time" and "hyperplane of simultaneity" are synonymous (whatever the theory used, Newton, Einstein, Hachel).

Sure, but mathematicians use the term 'hyperplane' for a lot of other things, too, which have no connections to time.
It is like a subspace with one dimension less.
TH