On the Projective Normality of Smooth Surfaces of Degree Nine Gian Mario BesanaSandra Di Rocco OriginalPaper Pages: 1 - 21
Isometry Groups of Hyperbolic Three-Manifolds which are Cyclic Branched Coverings Marco ReniBruno Zimmermann OriginalPaper Pages: 23 - 35
On Quasi-Polarized Surfaces of General Type Whose Sectional Genus is Equal to the Irregularity Yoshiaki Fukuma OriginalPaper Pages: 37 - 47
Solution of Hadwiger-Levi's Covering Problem for Duals of Cyclic 2k-Polytopes IstvÁn Talata OriginalPaper Pages: 61 - 71
Eigenvalue Comparison Theorems of the Discrete Laplacians for a Graph Hajime Urakawa OriginalPaper Pages: 95 - 112