Young has played a leading role in the investigation of the statistical (or ergodic) properties of dynamical systems and has developed important and difficult techniques which have done much to clarify the subject.
Young ay nilalaro ng isang nangungunang papel sa imbestigasyon ng statistical (o ergodic) pag-aari ng dynamical system at ay binuo mahalaga at mahirap na pamamaraan ay may tapos na marami sa linawin ang paksa.