Automorphism group of the commutator subgroup of the braid group

Homomorphisms of commutator subgroups of braid groups

“…After the first version of our paper appeared, Orevkov [20] extended Theorem 1.1 by classifying homomorphisms 𝐵 ′ 𝑛 → 𝐵 𝑛 for arbitrary 𝑛 ⩾ 1. Prior results.…”

“…Prior results. In 2017, Orevkov [20] showed for 𝑛 ⩾ 4 that Aut(𝐵 ′ 𝑛 ) ≅ Aut(𝐵 𝑛 ). Another proof of Orevkov's result for 𝑛 ⩾ 7 was given by McLeay [19].…”