Rienmannian Submersions and Isoperimetric Inequalities Atsushi KasueAtsuhiko Mendori OriginalPaper Pages: 27 - 47
A Circumradius-Inradius Identity and an Identity Relating Volumes for a Simplex Wang Jia OriginalPaper Pages: 49 - 56
Trivalent Polygonal Complexes of Nonpositive Curvature and Platonic Symmetry Jacek Świa¸tkowski OriginalPaper Pages: 87 - 110