2005/05/23 | 真子簇[Proper Subvariety]
类别(∑〖数学〗) | 评论(0) | 阅读(44) | 发表于 20:23
A subvariety of an algebraic variety that is not the entire variety. The proper subvarieties of a line are its nonempty finite subsets, the proper subvarieties of a plane are its nonempty finite subsets, the unions of finitely many of its lines and, more in general, of finitely many algebraic curves contained in it.
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