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Guo Qi's user avatar
Guo Qi's user avatar
Guo Qi
  • Member for 9 years, 1 month
  • Last seen more than a month ago
  • Beijing, China
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About

Graduate student in AMSS, Chinese Academy of Sciences.

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Top posts
question
30
Polynomial $g:\mathbb R^n \rightarrow\mathbb R^n$ with no critical point may have no root
Nov 9, 2015
answer
9
Proofs without words
Nov 11, 2015
question
2
Some questions on parabolic function spaces
Oct 23, 2017
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5
An explanation for undergraduated students about why the Jacobian conjecture is hard