Maas, JanPortal, Pierrevan Neerven, Jan2015-12-070214-1493http://hdl.handle.net/1885/25791We study, in L1(R̃n; γ) with respect to the gaussian measure, non- tangential maximal functions and conical square functions associ- ated with the Ornstein-Uhlenbeck operator by developing a set of techniques which allow us, to some extent, to compensatKeywords: Gaussian measure; Hardy spaces; Maximal function; Ornstein-Uhlenbeck operator; Square functionConical square functions and non-tangential maximal functions with respect to the gaussian measure20112016-02-24