List of Figures

View Image Figure 1:
The curve g is covered by coordinate patches Ui , with transition functions gi (- G . The composition g o ...o g 1 n is the holonomy of the curve.
View Image Figure 2:
The ADM decomposition is based on the Lorentzian version of the Pythagoras theorem.
View Image Figure 3:
Three tetrahedra can occur in Lorentzian dynamical triangulation.
View Image Figure 4:
A manifold M with a single boundary S describes the birth of a universe in the Hartle-Hawking approach to quantum cosmology.