We characterize positivity preserving maps T:B(H)h⊗R[x1,…,xn]→B(H)h⊗R[x1,…,xn]T:B(H)h⊗R[x1,…,xn]→B(H)h⊗R[x1,…,xn] on RnRn and on compact sets K⊆RnK⊆Rn. This also characterizes local operator moment sequences and general operator moment sequences via positivity preserving maps.
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