Mathematics
Qingzhong Liang's user avatar
Qingzhong Liang's user avatar
Qingzhong Liang's user avatar
Qingzhong Liang
  • Member for 7 years
  • Last seen more than 5 years ago
  • Ann Arbor, MI, United States
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About

I am Qingzhong Liang, a third year undergraduate math student at University of Michigan, Ann Arbor.

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All Questions Answers
Score Newest
answer
10
Is there a function $f:\mathbb{Z}\rightarrow\mathbb{Z}$ such that $f(f(x))=x+1$?
Jun 1, 2016
answer
9
Given $a_1,a_{100}, a_i=a_{i-1}a_{i+1}$, what's $a_1+a_2$?
Jun 1, 2016
answer
8
Prove that $[\sqrt{n}+\sqrt{n+1}]=[\sqrt{4n+1}]$
Jul 7, 2016
answer
7
Is this a correct way of proving that if $A^3-3A + I = 0$ then $A^{-1}=3I-A$?
Jun 19, 2016
answer
5
Fractional part of a square root
Jun 27, 2016
answer
4
numbers from $1$ to $2046$
May 29, 2016
answer
4
Prove that $3^{(q-1)/2} \equiv -1 \pmod q$ then q is prime number.
Jun 5, 2016
answer
3
Why if $E$ has characteristic $p$ then $F=\{a\in E:a^{p^n}=a\}$ is a subfield?
Jun 6, 2016
answer
3
Why is a bilinear map $M \times N \to B$ the same as a homomorphism $M \to Hom_R(N,P)$?
Jun 12, 2016
answer
3
Non-cyclical behavior of a union of subgroups
Jun 13, 2016

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