Commutative Ring Theory
《Commutative Ring Theory》 · 第 24 页 · Chapter 1
The set of all prime ideals of a ring $A$ is called the spectrum of $A$, and written $\operatorname{Spec}A$; the set of maximal ideals of $A$ is called the maximal spectrum of $A$, and written $\operatorname{m-Spec}A$.