Solitons: Differential equations, symmetries, and infinite-dimensional algebras
《Solitons: Differential equations, symmetries, and infinite-dimensional algebras》 · 第 161 页 · Definition 6.24
Let $X$ be a locally noetherian scheme. A point $x\in X$ is called regular, if the local ring $\mathcal O_{X,x}$ is regular. The scheme $X$ is called regular if every point is regular.