摘要: Many useful descriptions of stochastic models can be obtained from functional limit theorems invariance principles or weak convergence for probability measures on function spaces. These typically come standard via the continuous mapping theorem. This paper facilitates applications theorem by determining when several important functions and sequences preserve convergence. The considered are composition, addition, composition plus multiplication, supremum, reflecting barrier, first passage time reversal. provide means proving new previous ones. useful, example, to establish stability continuity queues other models.