The geodesic flow and sectional curvature of pseudo-Riemannian manifolds J. BeemC. ChiconeP. Ehrlich OriginalPaper Pages: 111 - 118
On enclosing and enclosed conics for convex polygons and curves Fabricius-Bjerre OriginalPaper Pages: 131 - 136
n-Färbugen der ebene, wobei jede Gerade k-Färbig ist Berndt HortigReinhard RazenPeter Schöpf OriginalPaper Pages: 137 - 145
Euler's relation, möbius functions and matroid identities Raul CordovilMichel Las VergnasArnaldo Mandel OriginalPaper Pages: 147 - 162
Conformally flat C-totally real submanifolds of Sasakian space forms Paul VerheyenLeopold Verstraelen OriginalPaper Pages: 163 - 169
Quadriques hermitiennes et ensembles de classe (0, 1, n, q+1) de PG(d, q) Christiane Lefevre-Percsy OriginalPaper Pages: 209 - 213