a***n
发帖数: 3633 | 1 请问isomorphism和homomorphism的区别
一个地方说, A one-one mapping f of X onto Y is called a homomorphism
between X and Y if f is continuous and the mapping f-1 inverse to f is also
continuous.
另外一个地方说An isomorphism is a bijective homomorphism. 但是one-one + onto
不就是bijective ?
谢谢 | x*****d
发帖数: 427 | 2 第一个定义看漏了一个字母, homEomorphism 同胚
homomorphism 翻译成同态
also
onto
【在 a***n 的大作中提到】
: 请问isomorphism和homomorphism的区别
: 一个地方说, A one-one mapping f of X onto Y is called a homomorphism
: between X and Y if f is continuous and the mapping f-1 inverse to f is also
: continuous.
: 另外一个地方说An isomorphism is a bijective homomorphism. 但是one-one + onto
: 不就是bijective ?
: 谢谢
| a***n
发帖数: 3633 | 3 hehe, right, Thank you
【在 x*****d 的大作中提到】
: 第一个定义看漏了一个字母, homEomorphism 同胚
: homomorphism 翻译成同态
:
: also
: onto
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