Some aspects of cylindrical solutions in Brans-Dicke gravity
  Several points regarding cylindrical Brans-Dicke geometries are studied. The issue of particle trajectories for the vacuum cylindrical solution is revisited. The possible particular nature of a global string metric is analysed. The general form of the junction conditions for matching cylindrical solutions within this theory is written down, and the relation with the general relativity limit is discussed. 
Andres Arazi, Claudio Simeone
gr-qc