2 problems

Let $L$ be a prime, fibred, strongly quasipositive link. Write $k(L)$ for its BKL-exponent, defined as the maximum integer $k$ such that $L$ is the closure of $\delta_n^kP$ for som…

Let $L$ be a link in $S^3$, and for each integer $n\geq 2$ let $\Sigma_n(L)$ denote the canonical $n$-fold cyclic cover branched over $L$. A link is simply laced arborescent if it…