2 problems

Let $n>1$ be odd, let $R_n=\mathbb{Z}/n\mathbb{Z}$ with dihedral quandle operation $a*b=2b-a$, let $\Delta(R_n)$ be the augmentation ideal of its integral quandle ring, and let…

For every finite Latin quandle $Q$, let $\mathbb{Z}[Q]$ be the free abelian group with basis $Q$, equipped with the bilinear multiplication extending the quandle operation $x*y$ on…