Symmetric Variations of the Metric and Extrema of the Action for Pure Gravity Simon Davis OriginalPaper Pages: 345 - 377
Invariance of the Massless Field Equations under Changes of the Metric G. F. Torres del CastilloJ. A. Mondragón-Sánchez OriginalPaper Pages: 379 - 387
Theorems on Shear-Free Perfect Fluids with Their Newtonian Analogues José M. M. SenovillaCarlos F. SopuertaPeter Szekeres OriginalPaper Pages: 389 - 411
Sparling Two-Forms, the Conformal Factor and the Gravitational Energy Density of the Teleparallel Equivalent of General Relativity J. W. Maluf OriginalPaper Pages: 413 - 423
Particle-Like Description for FRW Cosmologies J. A. S. LimaJ. A. M. MoreiraJ. Santos OriginalPaper Pages: 425 - 434
Inequivalence of Jordan and Einstein Frame: What Is the Low Energy Gravity in String Theory? Rainer Dick OriginalPaper Pages: 435 - 444
Gravitational Collapse: A Case for Thermal Relaxation L. HerreraJ. Martínez OriginalPaper Pages: 445 - 471
Effect of the Global Rotation of the Universe on the Formation of Galaxies Li-Xin Li Letter Pages: 497 - 507
A Class of Kaluza-Klein Solutions Curved in 4D and Flat in 5D Hongya LiuPaul S. Wesson Letter Pages: 509 - 514