A family of examples showing that no Krasnosel’skii number exists for orthogonal polygons starshaped via staircase n-paths Marilyn Breen OriginalPaper 11 July 2009 Pages: 1 - 6
On the boundary of a special class of hyperbolic two-dimensional simplicial complexes Charalambos CharitosIoannis PapadoperakisEmmanuel Vrontakis OriginalPaper 23 July 2009 Pages: 7 - 30
On sizes of complete caps in projective spaces PG(n, q) and arcs in planes PG(2, q) Alexander A. DavydovGiorgio FainaFernanda Pambianco OriginalPaper 18 July 2009 Pages: 31 - 58
Translation planes constructed by multiple hyper-regulus replacement Vikram JhaNorman L. Johnson OriginalPaper 15 July 2009 Pages: 59 - 87
Singularities of lightcone Gauss images of spacelike hypersurfaces in de Sitter space Masaki Kasedou OriginalPaper 15 July 2009 Pages: 107 - 121
The Ricci tensor and structure Jacobi operator of real hypersurfaces in a complex projective space U-Hang KiSetsuo Nagai OriginalPaper 12 August 2009 Pages: 123 - 142
On diversity and stability of unit bases for the Euclidean metric Alexandr Kuzminykh OriginalPaper 15 July 2009 Pages: 143 - 150
Regular triangular pyramids held by a circle Yuichi Tanoue OriginalPaper 18 July 2009 Pages: 151 - 157
Two new sets of ellipse-related concyclic points Maurizio Ternullo OriginalPaper 24 July 2009 Pages: 159 - 173