Canonical-form conjecture for natural reorderings of finite connected quandles

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Let QQ be a finite connected quandle with elements 1,2,…,n1,2,\ldots,n naturally ordered, profile {1,ℓ1,ℓ2,…,ℓk}\{1,\ell_1,\ell_2,\ldots,\ell_k\}, and 1≤ℓ1≤ℓ2≤⋯≤ℓk1\leq\ell_1\leq\ell_2\leq\cdots\leq\ell_k. Let ν\nu be a natural reordering with respect to rnr_n, as in the last sentence of Theorem. Canonical-form conjecture. In the last sentence of Theorem, one can choose ν\nu so that ν(i)=i\nu(i)=i for every integer ii satisfying

(∑j=1k−1ℓj)+1≤i≤n\left(\sum_{j=1}^{k-1}\ell_j\right)+1\leq i\leq n

even when ℓk−1=ℓk\ell_{k-1}=\ell_k. This concerns whether the canonical-form construction can be strengthened when the two largest profile parts are equal. The supplied text gives no evidence that the assertion has been proved or disproved, so it remains open.

References

Primary source

Chuichiro Hayashi, “Canonical forms for operation tables of finiate connected quandles”, arXiv:1110.1849 (2011).

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