Adjoint test modules along Cohen--Macaulay morphisms
arXiv:2605.07956
Abstract
We provide a transformation rule for adjoint test modules along Cohen--Macaulay maps between Cohen--Macaulay varieties that have -rational geometric fibers. This is, in part, an effective version of Enescu's theorem on the ascent of -rationality under local maps with -rational geometric fibers.
8 pages, comments are welcome