MINKOWSKI DECOMPOSITION AND GENERATORS OF THE MOVING CONE FOR TORIC VARIETIES
MINKOWSKI DECOMPOSITION AND GENERATORS OF THE MOVING CONE FOR TORIC VARIETIES
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MINKOWSKI 分解和复曲面品种的动锥生成器
DOI:
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发表时间:
2013
期刊:
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通讯作者:
S. Urbinati
中科院分区:
文献类型:
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作者:
Piotr Pokora;David Schmitz;S. Urbinati
We prove that for smooth projective toric varieties, the Okounkov body of a T-invariant pseudo-effective divisor with respect to a T-invariant flag decomposes as a finite Minkowski sum of indecomposable polytopes. We prove that these inde- composable polytopes form a finite Minkowski base and that they correspond to the rays in the secondary fan. Moreover, we present an algorithm to find the Minkowski base.