On weak commutativity between $n$ isomorphic groups, $n\ge 2$

Said N. Sidki, Noraí R. Rocco, Ricardo N. de Oliveira +1

The Weak Commutativity Group was defined by the first author in the early 1980's as $\chi (H)=⟨H,H^{\psi }\mid [h,h^{\psi }]=1,\forall h\in H⟩$ where $H$ and $H^{\psi }$ are iso…