The adjoint-test ideal correspondence conjecture along a subvariety
The adjoint-test ideal correspondence conjecture along a subvariety
Let be a regular local ring essentially of finite type over a perfect field of prime characteristic , and let be a nonzero unmixed ideal. Let be a formal combination, where the are ideals of such that and the are positive real numbers. Set , and . Assume that is reduced from characteristic zero to characteristic , together with a log resolution of used to define the adjoint ideal sheaf . Adjoint-test ideal correspondence conjecture. Then
This conjecture predicts that the generalized test ideal along agrees with the adjoint ideal sheaf after reduction from characteristic zero. The paper establishes partial results toward this correspondence, while the full assertion is not established in the supplied text.
Sources & referencesView supporting material
Primary source
Shunsuke Takagi, “Adjoint ideals along closed subvarieties of higher codimension”, arXiv:0711.2342 (2008).
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