1. Complex conformal rescalings and complex Lorentz transformations

   • Garry Ludwig

   Research Articles Pages: 1 - 21

2. Curvature and closed trapped surfaces in 4-dimensional space-times

   • Demir N. Kupeli

   Research Articles Pages: 23 - 41

3. A cosmological solution of a 5D space-time-mass gravity in vacuum

   • Takao Fukui

   Research Articles Pages: 43 - 46

4. The validity of the formulaE=mc ² for gravitational energy

   • Thomas W. Noonan

   Research Articles Pages: 47 - 56

5. Conformal invariance and torsion in general relativity

   • José W. Maluf

   Research Articles Pages: 57 - 71

6. Chaos in the long-term behavior of some Bianchi-type VIII models

   • Paul Halpern

   Research Articles Pages: 73 - 94

7. Infinitesimal holonomy groups of Einstein-Maxwell space-times

   • C. D. Collinson
   • P. N. Smith

   Research Articles Pages: 95 - 107

8. Book review

   • Y. Takano

   BookReview Pages: 109 - 110

9. Announcement

   Announcement Pages: 111 - 111