The operator B is contractive in (FT(X), dFT ), and has a unique fixed point. In particular, if
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is the FT of the invariant measure of the Markov operator M, then the fixed point is

The following final results holds true.
Stefano M. Iacus, Davide La Torre
Next: Theorem 9 (Collage Theorem for FT, (Forte and Vrscay, 1998))
Summary: Index