Solitons: Differential equations, symmetries, and infinite-dimensional algebras
《Solitons: Differential equations, symmetries, and infinite-dimensional algebras》 · 第 56 页 · Definition 2.29 后
The composition of morphisms of ringed spaces is defined in the obvious way, and we obtain the category of ringed spaces. We call $\mathcal O_X$ the structure sheaf of $(X,\mathcal O_X)$.