1. Group contraction and the nine Cayley-Klein geometries

   • M. A. Fernández Sanjuan

   OriginalPaper Pages: 1 - 14

2. Three-body model for stripping nuclear reactions

   • Ahmed Osman

   OriginalPaper Pages: 15 - 25

3. Critical comments on the discussion about tachyonic causal paradoxes and on the concept of superluminal reference frame

   • Jerzy Klemens Kowalczyński

   OriginalPaper Pages: 27 - 60

4. Group fields, gravity, and angular momentum

   • J. G. Williams
   • David Finkelstein

   OriginalPaper Pages: 61 - 66

5. Sheaf models and massless fields

   • Richard Jozsa

   OriginalPaper Pages: 67 - 97