| Register
\(\newcommand{\Cat}{{\rm Cat}} \) \(\newcommand{\A}{\mathcal A} \) \(\newcommand{\freestar}{ \framebox[7pt]{$\star$} }\)

3. Thompson groups

    1. Commutator width of Thompson groups

          Let $G$ be $F,T$ or $V$ or a topological full group. Let $\rho_1(g)$ be the commutator width of $g$ and $\rho_2(g)$ the minimum number of involutions in a factorization of $g$.

      Problem 3.1.

      1. Prove that $\rho_1$ and $\rho_2$ are bounded
      2. Prove that $\rho_1 = 1$ and $\rho_2 = 3$
      3. Is there a finitely presented simple group with commutator width greater or equal to $2$?
        • Maximal subgroups in Thompson groups

          Problem 3.2.

          Find new maximal subgroups of infinite index in Thompson groups

              Cite this as: AimPL: Groups of dynamical origin, available at http://aimpl.org/groupdynamorigin.