On the question of the existence of a canonically defined distance function for metrics with indefinite signature on a given manifold Elmar Eder Research Articles Pages: 775 - 789
Algebraic isometric embeddings of charged spherically symmetric space-times Marco FerrarisMauro Francaviglia Research Articles Pages: 791 - 804
Exact spatially homogeneous cosmologies C. B. CollinsE. N. GlassD. A. Wilkinson Research Articles Pages: 805 - 823
Two theorems on flat space-time gravitational theories Mario CastagninoLuis Chimento Research Articles Pages: 825 - 835
The internal state of a gas of particles with spin Y. FeldmanG. E. Tauber Research Articles Pages: 837 - 856
A new unified field theory based on the conformal group Eliano Pessa Research Articles Pages: 857 - 862
General solutions for a static isotropic metric in the Brans-Dicke gravitational theory N. Van Den Bergh Research Articles Pages: 863 - 869