ar X iv : g r - qc / 9 30 50 04 v 1 5 M ay 1 99 3 FORM CONNECTIONS ITP 93 - 9 May 1993

ar X iv : g r - qc / 9 90 40 34 v 2 1 7 M ay 1 99 9 SU - ITP / 99 - 18 4 D quantum black hole physics from 2 D models ?

Minimally coupled 4D scalar fields in Schwarzschild space-time are considered. Dimensional reduction to 2D leads to a well known anomaly induced effective action, which we consider here in a local form with the introduction of auxiliary fields. Boundary conditions are imposed on them in order to select the appropriate quantum states (Boulware, Unruh annd Israel-Hartle-Hawking). The stress tenso...

ar X iv : m at h - ph / 9 80 50 04 v 1 5 M ay 1 99 8 Five - Dimensional Tangent Vectors in Space - Time

ar X iv : g r - qc / 9 30 60 03 v 2 7 M ar 1 99 4 Consistency of the Nonsymmetric Gravitational Theory

The NGT field equations with sources are expanded first about a flat Minkowski background and then about a GR background to first-order in the antisymmetric part of

ar X iv : h ep - l at / 9 30 50 16 v 1 2 0 M ay 1 99 3 FUB - HEP 9 / 93 May 4 , 1993

To further improve the performance of Monte Carlo simulations of first-order phase transitions we propose to combine the multicanonical approach with multigrid techniques. We report tests of this proposition for the d-dimensional Φ4 field theory in two different situations. First, we study quantum tunneling for d = 1 in the continuum limit, and second, we investigate first-order phase transitio...

ar X iv : g r - qc / 9 30 10 09 v 3 7 M ay 1 99 3 Cosmology ,

According to recent reports there is an excess correlation and an apparent regularity in the galaxy one-dimensional polar distribution with a characteristic scale of 128 h Mpc. This aparent spatial periodicity can be naturally explained by a time oscillation of the gravitational constant G. On the other hand, periodic growth features of bivalve and coral fossiles appear to show a periodic compo...