ScalingStacks

Definition 4.19 . [02PV]

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Definition 4.19.

Let XX be a toric variety and LL a line bundle on XX. A toric structure on LL is the choice of a non-zero vector zz on the fibre Lx0=x0∗​LL_{x_{0}}=x_{0}^{\ast}L over the distinguished point. A toric line bundle is a pair (L,z)(L,z), where LL is a line bundle on XX and zz is a toric structure on LL. A rational section ss of a toric line bundle is a toric section if it is regular and nowhere vanishing on the principal open subset X0X_{0}, and s⁡(x0)=zs(x_{0})=z. In order not to burden the notation, a toric line bundle will generally be denoted by LL, the vector zz being implicit.

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