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Peter Whang's user avatar
Peter Whang's user avatar
Peter Whang's user avatar
Peter Whang
  • Member for 4 years, 2 months
  • Last seen more than 3 years ago
  • Beijing
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A very lazy person in almost everything.

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100
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50
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1
Posts
50
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1
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50
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1
Is the usage of “where” in this sentence acceptable？
Oct 15, 2020
question
0
When the object and the preposition phrase are interchangeable?
Oct 31, 2020
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If $f$ is a surjective normal endomorphism of group $G$, then $f=1_G+g$ where $g$ send $G$ to its center.