The open mouth theorem, or the scissors lemma, for orthocentric tetrahedra Sadi Abu-SaymehMowaffaq HajjaMostafa Hayajneh OriginalPaper 22 June 2012 Pages: 1 - 16
Factorable surfaces in the three-dimensional Euclidean and Lorentzian spaces satisfying Δr i = λ i r i Mohammed BekkarBendehiba Senoussi OriginalPaper 21 June 2012 Pages: 17 - 29
Clifford parallelism: old and new definitions, and their use Dieter BettenRolf Riesinger OriginalPaper 27 June 2012 Pages: 31 - 73
The realizable extension problem and the weighted graph (K 3,3, l) Jonathan McLaughlin OriginalPaper 17 April 2012 Pages: 75 - 88
Conformally invariant tensors of an almost Hermitian manifold associated with the holomorphic curvature tensor Mileva Prvanović OriginalPaper 17 May 2012 Pages: 89 - 101
Extremal problems for the central projection Shigehiro Sakata OriginalPaper 17 April 2012 Pages: 125 - 129
Conics in the hyperbolic plane intrinsic to the collineation group John Sarli OriginalPaper 22 June 2012 Pages: 131 - 148
Convex solids whose point-source shadow-boundaries lie in hyperplanes Valeriu Soltan OriginalPaper 17 April 2012 Pages: 149 - 160
On the semidiscrete differential geometry of A-surfaces and K-surfaces Johannes Wallner OriginalPaper 07 April 2012 Pages: 161 - 176
Linear Weingarten spacelike submanifolds in de Sitter space Dan YangZhonghua Hou OriginalPaper 18 April 2012 Pages: 177 - 190
