1. Hyperbolic quantum mechanics

   • Andrei Khrennikov

   Original Paper Pages: 1 - 9

2. KamiWaAI – interactive 3D sketching with Java based on Cl(4, 1) conformal model of Euclidean space

   • Eckhard M. S. Hitzer

   Original Paper Pages: 11 - 45

3. Hardy spaces on the Quaternions

   • Jiman Zhao

   Original Paper Pages: 47 - 55

4. N-dimensional space-time unit spheres and Lorentz transformation

   • Wuming Li
   • Fan Yang

   Original Paper Pages: 57 - 64

5. The geometrical interpretation of uncertainty relation in Minkowski space

   • Yu Xuegang
   • Yu Xueqian

   Original Paper Pages: 65 - 70

6. Clifford tetrads, null zig zags, and quantum gravity

   • Marcus S. Cohen

   Original Paper Pages: 71 - 106

7. Generalized self-duality of 2-forms

   • N. Değirmenci
   • Ş. Koçak

   Original Paper Pages: 107 - 113