1. 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

2. On the boundary of a special class of hyperbolic two-dimensional simplicial complexes

   • Charalambos Charitos
   • Ioannis Papadoperakis
   • Emmanuel Vrontakis

   OriginalPaper 23 July 2009 Pages: 7 - 30

3. On sizes of complete caps in projective spaces PG(n, q) and arcs in planes PG(2, q)

   • Alexander A. Davydov
   • Giorgio Faina
   • Fernanda Pambianco

   OriginalPaper 18 July 2009 Pages: 31 - 58

4. Translation planes constructed by multiple hyper-regulus replacement

   • Vikram Jha
   • Norman L. Johnson

   OriginalPaper 15 July 2009 Pages: 59 - 87

5. On the planes of Suetake

   • Vikram Jha
   • Norman L. Johnson

   OriginalPaper 28 July 2009 Pages: 89 - 105

6. Singularities of lightcone Gauss images of spacelike hypersurfaces in de Sitter space

   • Masaki Kasedou

   OriginalPaper 15 July 2009 Pages: 107 - 121

7. The Ricci tensor and structure Jacobi operator of real hypersurfaces in a complex projective space

   • U-Hang Ki
   • Setsuo Nagai

   OriginalPaper 12 August 2009 Pages: 123 - 142

8. On diversity and stability of unit bases for the Euclidean metric

   • Alexandr Kuzminykh

   OriginalPaper 15 July 2009 Pages: 143 - 150

9. Regular triangular pyramids held by a circle

   • Yuichi Tanoue

   OriginalPaper 18 July 2009 Pages: 151 - 157

10. Two new sets of ellipse-related concyclic points

    • Maurizio Ternullo

    OriginalPaper 24 July 2009 Pages: 159 - 173