M. A. Zaighum
Department of Basic Sciences Riphah International University Islamabad, Pakistan.
[ 1 ] - Defining relations of a group $Gamma= G^{3,4}(2,Z)$ and its action on real quadratic field
In this paper, we have shown that the coset diagrams for the action of a linear-fractional group $Gamma$ generated by the linear-fractional transformations $r:zrightarrow frac{z-1}{z}$ and $s:zrightarrow frac{-1}{2(z+1)}$ on the rational projective line is connected and transitive. By using coset diagrams, we have shown that $r^{3}=s^{4}=1$ are defining relations for $Gamma$. Furt...