Phase transition and topology in 4d simplicial gravity
  We present data indicating that the recent evidence for the phase transition being of first order does not result from a breakdown of the ergodicity of the algorithm. We also present data showing that the thermodynamical limit of the model is independent of topology. 
S. Bilke (Bielefeld), Z. Burda (Bielefeld), A. Krzywicki (Orsay) and   B. Petersson (Bielefeld)