Some geometry of the isomorphism $ Sp(4,q)\ \widetilde =\ O(5,q), q $ even Antonio CossidenteSam K. J. Vereecke Pages: 28 - 37
Conformally flat contact metric manifolds Amalendu GhoshThemis KoufogiorgosRamesh Sharma Pages: 66 - 76
Projectively flat affine surfaces with flat affine metric Chaujun Isaac LeeLuc Vrancken Pages: 85 - 100
Congruence theorem for 4-tuples in the Grassmann manifold $ G_2(R^8) $ Giovanni Masala Pages: 117 - 132
Dihedral groups generated by Baer involutions in $ \rm P \Gamma \rm L(3,q^2) $ Harm PralleJohannes Ueberberg Pages: 151 - 159