Takis Konstantopoulos

On the extendibility of finitely exchangeable probability measures

2015 · arXiv (Cornell University)

A length-$n$ random sequence $X_1,\ldots,X_n$ in a space $S$ is finitely exchangeable if its distribution is invariant under all $n!$ permutations of coordinates. Given $N > n$, we study the extendibility problem: when is it …