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Let $ R/S $ be a Frobenius extension and $ k $ be a positive integer. We prove that an $ R $-
module is $ k $-torsionfree if and only if so is its underlying $ S $-module. As an application …

Let $ R/S $ be a Frobenius extension and $ k $ be a positive integer. We prove that an $ R $-
module is $ k $-torsionfree if and only if so is its underlying $ S $-module. As an application …