When we need to consider the space X in multiple overlapping layers, such as in the case of Riemann surfaces, we create an overlapping space and consider it as a projection . This is called the covering space of X. Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
リーマン面のときのように,空間 X を何重かに重ねて考える必要のあるとき,その重なったもの をつくり,射影 で考える。この を X の被覆空間という。
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