The globally F-regular type implies log Fano conjecture
The globally F-regular type implies log Fano conjecture
Let be a projective variety of characteristic zero. A variety is globally F-regular type if it has globally F-regular reductions modulo a Zariski-dense set of primes, and it is log Fano if there is an effective -divisor such that is Kawamata log terminal and is ample.
Globally F-regular type implies log Fano. A projective globally F-regular type variety of characteristic zero is log Fano.
The converse to the corresponding positive-characteristic implication is open in general. It is known under the additional hypothesis that the variety is a -factorial Mori Dream space; if true in general, the conjecture would also imply that globally F-regular type varieties are Mori Dream spaces.
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Sources & referencesView supporting material
Primary source
Karen E. Smith and Wenliang Zhang, “Frobenius Splitting in Commutative Algebra”, arXiv:1409.1169 (2014).
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