A transformation rule is given for adjoint test modules along Cohen-Macaulay morphisms between Cohen-Macaulay varieties with F-rational geometric fibers, providing an effective version of Enescu's theorem on the ascent of F-rationality.
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Adjoint test modules along Cohen--Macaulay morphisms
A transformation rule is given for adjoint test modules along Cohen-Macaulay morphisms between Cohen-Macaulay varieties with F-rational geometric fibers, providing an effective version of Enescu's theorem on the ascent of F-rationality.