3 problems

Let $n\geq 2$ be even, let $\Pi_n$ be the index set used in the source, and let $AR_\nu(\boldsymbol{\mathcal E}_n)$ be the abelian relation associated with $\nu\in\Pi_n$. Abelian-r…

Let $n\geq 2$ be even, and let $\varepsilon_{n-1}$ be the function defined by the displayed formula in the source for the web $\boldsymbol{\mathcal W}_{0,n+3}$. Euler's even-dimens…

Let $n\geq 3$ be odd, and let $\boldsymbol{\mathcal E}_n^{>0}$ denote Euler's abelian relation for the web $\boldsymbol{\mathcal W}_{0,n+3}$. Euler's abelian-relation conjecture. T…