The 4-Squares-Identity of Leonhard Euler(adsbygoogle = window.adsbygoogle || []).push({});

(https://en.wikipedia.org/wiki/Euler%27s_four-square_identity) :

has the numeric structure of Maxwell’s equations in 4-space:

Is somebody aware of litterature about this?

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# A Euler's 4-squares-identity and Maxwell's equations

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