Open Mappings of Probability Measures and the Skorokhod Representation Theorem
2002
We prove that for the wide class of spaces X and Y (including completely regular Souslin spaces), every open surjective mapping f: $X\to Y$ induces the open mapping $\hat f$: $\mu\mapsto\mu\circ f^{-1}$ between the spaces of probability measures ${\cal P} (X)$ and ${\cal P} (Y)$. We discuss the existence of continuous inverse mappings for $\hat f$ and connections with the Skorokhod representation theorem and its generalizations.
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