Automorphisms of the semigroup of endomorphisms of free associative algebras

A. Kanel-Belov, A. Berzins, R. Lipyanski

Let $A=A(x_1,...,x_n)$ be a free associative algebra in $\mathcal{A}$ freely generated over $K$ by a set $X=\{x_1,...,x_n\}$, $EndA$ be the semigroup of endomorphisms of $…