2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/70634The purpose of this note is to introduce and study a relativistic motion whose acceleration, in proper time, is given by a white noise. We begin with the flat case of special relativity, continue with the case of general relativity, and finally consider more closely the example of the Schwarzschild space.13 pagesProbabilityMathematical Physics58J65; 60J65; 83C57; 83A05; 83C10text