TY - JOUR AU - Cordero, Luis A. AU - Parker, Phillip E. TI - Examples of sectional curvature with prescribed symmetry on $3$-manifolds JO - Czechoslovak Mathematical Journal PY - 1995 SP - 7 EP - 20 VL - 45 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1995.128512/ DO - 10.21136/CMJ.1995.128512 LA - en ID - 10_21136_CMJ_1995_128512 ER -