Canonical-form conjecture for natural reorderings of finite connected quandles

From papers

Let QQ be a finite connected quandle with elements 1,2,,n1,2,\ldots,n naturally ordered, profile {1,1,2,,k}\{1,\ell_1,\ell_2,\ldots,\ell_k\}, and 112k1\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=1k1j)+1in\left(\sum_{j=1}^{k-1}\ell_j\right)+1\leq i\leq n

even when k1=k\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.

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Sources & referencesView supporting material

Primary source

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

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