The Stacks project

Definition 15.83.1. Let $R \to A$ be a flat ring map of finite presentation. An object $K$ of $D(A)$ is $R$-perfect or perfect relative to $R$ if $K$ is pseudo-coherent (Definition 15.64.1) and has finite tor dimension over $R$ (Definition 15.66.1).

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View Definition 15.83.1 as pdf