Standard models of degree $1$ del Pezzo fibrations
Standard models of degree $1$ del Pezzo fibrations
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DOI:
10.17323/1609-4514-2018-18-4-721-737
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发表时间:
2017-10
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影响因子:
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通讯作者:
K. Loginov
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文献类型:
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作者:
K. Loginov
We construct a standard birational model (a model that has Gorenstein canonical singularities) for the three-dimensional del Pezzo fibrations ${ \pi \colon X \longrightarrow C }$ of degree $1$ and relative Picard number $1$. We also embed the standard model into the relative weighted projective space $\mathbb{P}_C (1,1,2,3)$. Our construction works in the $G$-equivariant category where $G$ is a finite group.