Ueda - Extension of tetration to real and complex heights
#1
Hi, sometimes I check Google Scholar and Arxiv in order to be updated for new papers in our field and it seems that this extension from Takeji Ueda totally avoided my radar.

https://arxiv.org/pdf/2105.00247.pdf

To be honest  I didn't have time to give it more than a quick look. It actually reminds me a lot of that approach with q-analogs worked out by Vladimir Reshetnikov in 2017. I remember Daniel and James being somehow active on those MO questions so they know better than me for sure. I didn't see any reference to those MO conversations, only to the older Hooshmand, Kouznetzov and Paulsen-Cowjill.  So I can't conclude if original results are presented or the author just grabbed ideas in the air and polished the details and completed the proofs. I post here the link for future references.

Mother Law \(\sigma^+\circ 0=\sigma \circ \sigma^+ \)

\({\rm Grp}_{\rm pt} ({\rm RK}J,G)\cong \mathbb N{\rm Set}_{\rm pt} (J, \Sigma^G)\)
Reply
#2
(12/01/2021, 09:02 PM)MphLee Wrote: Hi, sometimes I check Google Scholar and Arxiv in order to be updated for new papers in our field and it seems that this extension from Takeji Ueda totally avoided my radar.

https://arxiv.org/pdf/2105.00247.pdf

To be honest  I didn't have time to give it more than a quick look. It actually reminds me a lot of that approach with q-analogs worked out by Vladimir Reshetnikov in 2017. I remember Daniel and James being somehow active on those MO questions so they know better than me for sure. I didn't see any reference to those MO conversations, only to the older Hooshmand, Kouznetzov and Paulsen-Cowjill.  So I can't conclude if original results are presented or the author just grabbed ideas in the air and polished the details and completed the proofs. I post here the link for future references.

Thanks MphLee. This appears to be an original and well thought out work. While not the same as my work, it does seem related in a number of points; combinatorics in Sterling Eq of the second kind and q series for example. I plan on giving the paper a more serious look. Particularly the part on convergences base on the fractal structure.
Daniel
Reply
#3
Hey, Mphlee

This is different than Reshetnikov's work vastly. It's just Hooshmand's construction, but with more finesse. This is a piece wise analytic solution. So it isn't analytic for \(\Re z \in \mathbb{N}\); so sadly, this is something that can be constructed pretty easily.
Reply
#4
Just for as an hobby I tried to plot it and it sucks already at the first derivative.

[Image: image.png]

Mother Law \(\sigma^+\circ 0=\sigma \circ \sigma^+ \)

\({\rm Grp}_{\rm pt} ({\rm RK}J,G)\cong \mathbb N{\rm Set}_{\rm pt} (J, \Sigma^G)\)
Reply
#5
(05/08/2022, 10:59 PM)MphLee Wrote: Just for as an hobby I tried to plot it and it sucks already at the first derivative.

[Image: image.png]

Lmao!!! Told you!
Reply


Possibly Related Threads…
Thread Author Replies Views Last Post
  extending normal tetration to real numbers using product tetration Alex Zuma 2025 0 934 12/12/2025, 07:49 PM
Last Post: Alex Zuma 2025
  Tetration with complex bases TetrationSheep 0 746 11/13/2025, 10:33 AM
Last Post: TetrationSheep
  my proposed extension of the fast growing hierarchy to real numbers Alex Zuma 2025 0 1,322 09/28/2025, 07:15 PM
Last Post: Alex Zuma 2025
  Behaviour of tetration into the real negatives Shanghai46 1 6,364 03/24/2025, 12:34 AM
Last Post: MphLee
  X-th iteration where x is a real number Natsugou 1 5,669 10/27/2024, 11:23 PM
Last Post: MphLee
  Real tetration as a limit of complex tetration Daniel 5 9,470 06/20/2023, 07:52 PM
Last Post: tommy1729
  Real and complex tetration Daniel 13 16,933 04/04/2023, 10:25 AM
Last Post: JmsNxn
  Evaluating Arithmetic Functions In The Complex Plane Caleb 6 8,546 02/20/2023, 12:16 AM
Last Post: tommy1729
  possible tetration extension part 1 Shanghai46 6 9,407 10/31/2022, 09:45 AM
Last Post: Catullus
  possible tetration extension part 3 Shanghai46 11 14,838 10/28/2022, 07:11 PM
Last Post: bo198214



Users browsing this thread: 1 Guest(s)