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SINGULARITIES OF DIVISORS ON FLAG VARIETIES VIA HWANG'S PRODUCT THEOREM

  • Smirnov, Evgeny (Faculty of Mathematics and Laboratory of Algebraic Geometry and its Applications National Research University Higher School of Economics)
  • Received : 2016.09.19
  • Accepted : 2017.02.13
  • Published : 2017.09.30

Abstract

We give an alternative proof of a recent result by B. Pasquier stating that for a generalized flag variety X = G/P and an effective ${\mathbb{Q}}-divisor$ D stable with respect to a Borel subgroup the pair (X, D) is Kawamata log terminal if and only if ${\lfloor}D{\rfloor}=0$.

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