The Stacks project

Definition 72.11.1. Let $k$ be a field. Let $X$ be an algebraic space over $k$.

  1. Let $x \in |X|$ be a point. We say $X$ is geometrically reduced at $x$ if $\mathcal{O}_{X, \overline{x}}$ is geometrically reduced over $k$.

  2. We say $X$ is geometrically reduced over $k$ if $X$ is geometrically reduced at every point of $X$.

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View Definition 72.11.1 as pdf