2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/217693In this short note, we show how to use concentration inequalities in order to build exact confidence intervals for the Hurst parameter associated with a one-dimensional fractional Brownian motionProbabilityStatistics Theory60F05; 60G15; 60H07Exact confidence intervals for the Hurst parameter of a fractional Brownian motiontext