4.2 Article

Boundedness of Weak Fano Pairs with Alpha-Invariants and Volumes Bounded Below

Publisher

KYOTO UNIV, PUBLICATIONS RESEARCH INST MATHEMATICAL SCIENCES
DOI: 10.4171/PRIMS/56-3-4

Keywords

Fano pairs; boundedness; alpha-invariants

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Funding

  1. Japan-Taiwan Exchange Association Scholarship

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We show that fixed-dimensional klt weak Fano pairs with alpha-invariants and volumes bounded away from 0 and the coefficients of the boundaries belonging to the set of hyperstandard multiplicities Phi(R) associated to a fixed finite set R form a bounded family. We also show alpha(X, B)(d-1)vol(-(K-X + B)) are bounded from above for all klt weak Fano pairs (X, B) of a fixed dimension d.

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