Transfinite sequences describing the greatest numbers of each complexity class modulo 3

Let n\|n\| denote the complexity of a natural number, and let ξ\xi be an ordinal. Consider three transfinite sequences (aα)α<ξ(a_\alpha)_{\alpha<\xi}, (bα)α<ξ(b_\alpha)_{\alpha<\xi}, and (cα)α<ξ(c_\alpha)_{\alpha<\xi} of rational numbers. Transfinite-sequence conjecture. There exist such sequences for which the greatest numbers of complexity 3n3n, respectively 3n+13n+1 and 3n+23n+2, are the first natural numbers contained in (3naα)(3^n a_\alpha), respectively (3nbα)(3^n b_\alpha) and (3ncα)(3^n c_\alpha), and ξ\xi is an infinite countable ordinal satisfying

ωξ=ξ.\omega\xi=\xi.

The conjecture proposes a transfinite organization of the extremal natural numbers by complexity modulo 33. The paper gives initial numerical data but no proof or resolution.

Sources & referencesView supporting material

Primary source

J. Arias de Reyna, “Complexity of natural numbers”, arXiv:2111.03345 (2021).

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