In this work, we determine the largest for which the nilpotent group of four-by-four triangular matrices with integer coefficients and the value one in the diagonal embeds into the group of diffeomorphisms of the closed interval.
In this work, we determine the largest for which the nilpotent group of four-by-four triangular matrices with integer coefficients and the value one in the diagonal embeds into the group of diffeomorphisms of the closed interval.