Ball throwing on spheres

Anne Estrade, Jacques Istas
2010 Bernoulli  
Ball throwing on Euclidean spaces has been considered for a while. A suitable renormalization leads to a fractional Brownian motion as limit object. In this paper we investigate ball throwing on spheres. A different behavior is exhibited: we still get a Gaussian limit but which is no longer a fractional Brownian motion. However the limit is locally self-similar when the self-similarity index H is less than 1/2.
doi:10.3150/09-bej241 fatcat:sufgrezmjjaixe4jrql3vbdqn4