A note on Gromov-Hausdorff-Prokhorov distance between (locally) compact   measure spaces
  We present an extension of the Gromov-Hausdorff metric on the set of compact metric spaces: the Gromov-Hausdorff-Prokhorov metric on the set of compact metric spaces endowed with a finite measure. We then extend it to the non-compact case by describing a metric on the set of rooted complete locally compact length spaces endowed with a locally finite measure. We prove that this space with the extended Gromov-Hausdorff-Prokhorov metric is a Polish space. This generalization is needed to define L\'evy trees, which are (possibly unbounded) random real trees endowed with a locally finite measure. 
Romain Abraham (MAPMO), Jean-Francois Delmas (CERMICS), Patrick   Hoscheit (MAPMO, CERMICS)
math.MG math.PR