Couplings of Brownian Motions of deterministic distance in model spaces of constant curvature
arXiv:1507.05202
Abstract
We consider the model space of constant curvature in dimension n and characterize all co-adapted couplings of Brownian motions on this space for which the distance between the processes is deterministic. In addition, the construction of the coupling is explicit for every choice of satisfying the above hypotheses.
arXiv commentThis is an updated version which include the coupling construction on all model spaces of constant curvature