Connected Quandles with Order Equal to Twice an Odd Prime
arXiv:1210.2150
Abstract
We show that there is an unique connected quandle of order twice an odd prime number greater than 3. It has order 10 and is isomorphic to the conjugacy class of transpositions in the symmetric group of degree 5. This establishes a conjecture of L. Vendramin.
Twenty-two pages. Preliminary version. v2: Corrected the definition of a simple quandle