BV functions on convex domains in Wiener spaces
  We study functions of bounded variation defined in an abstract Wiener space X, relating the variation of a function u on a convex open set O in X to the behavior near t=0 of T(t)u, T(t) being the Ornstein--Uhlenbeck semigroup in O. 
Alessandra Lunardi, Michele Miranda jr., Diego Pallara
math.FA