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Suppose that $\pi \: Y \to X$ is a finite map of normal varieties over aperfect field of characteristic $p > 0$. Previous work of the authors gave acriterion for when Frobenius splittings on $X$ (or more generally any$p^{-e}$-linear map) extend to $Y$. In this paper we give an alternate andhighly explicit proof of this criterion (checking term by term) when $\pi$ istamely ramified in codimension 1. Some additional examples are also explored.

Explicitly Extending Frobenius Splittings over Finite Maps