1. Trajectories on Geodesic Spheres in a Non-Flat Complex Space Form

   • Toshiaki Adachi

   OriginalPaper 17 November 2008 Pages: 1 - 29

2. Curvature Properties of Four-Dimensional Generalized Symmetric Spaces

   • Giovanni Calvaruso
   • Barbara De Leo

   OriginalPaper 17 November 2008 Pages: 30 - 46

3. Generalizing the Equal Area Zones Property of the Sphere

   • Jeff Dodd
   • Vincent Coll

   OriginalPaper 22 September 2008 Pages: 47 - 55

4. Symplectic, Hermitian and Kähler Structures on Walker 4-Manifolds

   • Eduardo García-Río
   • Seiya Haze
   • Yasuo Matsushita

   OriginalPaper 17 November 2008 Pages: 56 - 65

5. Metric and Periodic Lines in de Sitter’s World

   • Roland Höfer

   OriginalPaper 17 November 2008 Pages: 66 - 82

6. A New Class of Translation Planes Constructed by Hyper-regulus Replacement

   • Vikram Jha
   • Norman L. Johnson

   OriginalPaper 21 November 2008 Pages: 83 - 99

7. Classification of Projective Translation Planes of Order q² Admitting a Two-Transitive Orbit of Length q + 1

   • Mauro Biliotti
   • Vikram Jha
   • Alessandro Montinaro

   OriginalPaper 03 October 2008 Pages: 100 - 140

8. A Euclidean Area Theorem via Isotropic Projection

   • Robert D. Knight

   OriginalPaper 03 October 2008 Pages: 141 - 155

9. The Tangency Relation of Sets of the Classes \(\widetilde{M}_{p,k} \)

   • Tadeusz Konik

   OriginalPaper 17 November 2008 Pages: 156 - 164

10. Lie Groups as 4-Dimensional Riemannian or Pseudo-Riemannian Almost Product Manifolds with Nonintegrable Structure

    • Dimitar Mekerov

    OriginalPaper 21 November 2008 Pages: 165 - 174

11. An Irreducible Rectangle Tiling Contains a Spiral

    • Tomoe Motohashi
    • Kouki Taniyama

    OriginalPaper 03 October 2008 Pages: 175 - 184

12. A System of Axioms for Hyperbolic Geometry

    • John W. Schutz

    OriginalPaper 21 November 2008 Pages: 185 - 192

13. Rationally Generated Arcs

    • Zachary Treisman

    OriginalPaper 21 November 2008 Pages: 193 - 210