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06/11/2022, 04:04 AM
(This post was last modified: 07/11/2022, 10:59 PM by Catullus.)
How does tetration work for quaternions? What about for octonions? How do pentation and higher hyper-operations work for those?

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Sincerely: Catullus

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We try to walk before we can run

We do not even understand tetration well for octonions ( or even complex numbers lol )

And there are many tetrations and many hyper-operators.

So I assume it might be case specific.

I like the question , but it seems very very general.

Wish I could say more ... sorry.

regards

tommy1729

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I think most (known) methods rely on properties such as commutative associative etc.

So that might imply they all fail for most non-complex numbers.

Note that it is also problematic to define derivatives for non-complex functions. ( zero-divisors , depending on the type of infinitesimal , ... )

so that makes formulas that use calculus concepts * uncomfortable *.

Functional composition is associative ... but if we plug in non-associative numbers as parameters ... feels * delicate *.

Also we might get extra fixpoints in say the quaternions and such that harrass our convergeance domains and such.

Or as we learned before ; functions do no agree on the fixpoint. ( see the bummer thread )

There are also issues with combinatorial interpretations/methods but those are complicated.

Best I hope for is that the taylor series expansions of the solutions we have can be used ;

plug in a power-associative number x instead of the complex z and just compute the values.

... It should agree with the complex solution and by extension also the field/ring/whatever of x.

hopefully.

regards

tommy1729

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07/05/2022, 08:53 AM
(This post was last modified: 07/11/2022, 10:59 PM by Catullus.)
How do they work for matrices?

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Please remember to stay hydrated.

Sincerely: Catullus