2 problems

A link $L\subset\mathbb{S}^3$ has a generalized axis $\gamma$ with fiber surface $F$ when the complement of $\gamma$ fibers over $\mathbb{S}^1$ with fiber $F$. A $1$-extended…

Let $S=S_{g,p}$ be a surface with $p\ge 0$ and $g>1$. For positive integers $m$ and $n$ with $m\neq n$, consider homomorphisms between the braid groups $B_n(S)$ and $B_m(S)$. Nonex…