The endomorphism tower of a finite symmetric group

Victoria Gould, Ambroise Grau, Marianne Johnson +1

We consider the endomorphism tower of a monoid $M$, that is, the sequence of monoids End${}_i(M)$ where End${}_0(M)=M$ and for all $i\ge 1$, End${}_i(M)$ is the monoid of all endomorphi…