3 papers
math.AC2018
The TestIdeals package for Macaulay2
Alberto F. Boix, Daniel J. Hernández, Zhibek Kadyrsizova +7
This note describes a \emph{Macaulay2} package for computations in prime characteristic commutative algebra. This includes Frobenius powers and roots, -linear and -l…
math.AC2018
Symbolic and Ordinary Powers of Ideals in Hibi Rings
Janet Page, Daniel Smolkin, Kevin Tucker
We exhibit a class of Hibi rings which are diagonally F-regular over fields of positive characteristic, and diagonally -regular type over fields of characteristic zero, in the s…
math.AC2018
A New Subadditivity Formula for Test Ideals
Daniel Smolkin
We exhibit a new subadditivity formula for test ideals on singular varieties using an argument similar to those of Demailly-Ein-Lazarsfeld and Hara-Yoshida. Any subadditivity formu…