3 problems

Ciocan-Fontanine–Kim–Sabbah conjecture. For $\alpha,\alpha',\zeta,\zeta'$ as above,

Let $L_j$ denote the $j$th Lucas number, and let $\Gamma_{2^t}(1,2^{t-1}-1)$ be the cyclically presented group in the source. In the cases where $16\mid n$, write $n=2^t m$ with…

Let $\Gamma_n(1,n/2-1)$ be the cyclically presented group in the source, let $\Gamma_n(1,n/2-1)^\mathrm{ab}$ denote its abelianisation, and let $d(G)$ be the minimum number of gene…