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Results tagged with automorphisms
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user 47861
An automorphism is an isomorphism from an object to itself, and which also preserves the objects structure .
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why do automorphisms preserve ample divisors?
Let $X \hookrightarrow \mathbb{P}$ be a smooth hypersurface inside some projective space $\mathbb{P}$ and let $H$ be a smooth hyperplane section of $X$. Now let $\varphi$ be an automorphism of $X$.
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