Ample divisors on moduli spaces of weighted pointed rational curves, with applications to log MMP for $\bar{M}_{0,n}$

Details Ample divisors on moduli spaces of weighted pointed rational curves, with applications to log MMP for $\bar{M}_{0,n}$ Ample divisors on moduli spaces of weighted pointed rational curves, with applications to log MMP for $\bar{M}_{0,n}$

2008-10-09

arxiv.org/abs/0810.1677v1

J. Algebraic Geom., 20 (2011) no. 4, 599-629

Mathematics

Algebraic Geometry

Scientific paper

We introduce a new technique for proving positivity of certain divisor
classes on $\bar{M}_{0,n}$ and its weighted variants. Our methods give an
unconditional description of the spaces of symmetric weighted pointed rational
curves as log canonical models of $\bar{M}_{0,n}$.

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