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arXiv · 1202.2696

Mori dream spaces of Calabi-Yau type and the log canonicity of the Cox rings

Yujiro Kawamata·Shinnosuke Okawa
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Abstract

We prove that a Mori dream space over a field of characteristic zero is of Calabi-Yau type if and only if its Cox ring has at worst log canonical singularities. By slightly modifying the arguments we also reprove the characterization of the varieties of Fano type by the log terminality of the Cox rings.

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Yujiro Kawamata, Shinnosuke Okawa. 2012-02-13. Mori dream spaces of Calabi-Yau type and the log canonicity of the Cox rings. https://arxiv.org/abs/1202.2696

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