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Contractivity theorems in real ordered Banach spaces with applications to relative operator bounds, ergodic projections and conditional expectations
This paper provides various contractivity results for linear operators of the form I C where C are positive contractions on real ordered Banach spaces X: If A generates a positive semigroup in Lebesgue spaces L p (), we show (M. Pierre's result) that A(A) 1 is a contraction on the …