Mathematics
Ri-Li's user avatar
Ri-Li's user avatar
Ri-Li's user avatar
Ri-Li
  • Member for 9 years, 4 months
  • Last seen this week
  • St. Louis, MO, USA
Profile Activity
Stats
8,368
reputation
274k
reached
154
answers
399
questions
Communities
View all
About

I am a masters student in math.

Badges
View all badges
3
gold badges
47
silver badges
83
bronze badges
Top tags
View all tags
28
Score
94
Posts
17
Posts %
20
Score
57
Posts
10
Posts %
19
Score
49
Posts
9
Posts %
11
Score
105
Posts
19
Posts %
9
Score
68
Posts
12
Posts %
5
Score
38
Posts
7
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
question
21
Prove that $\operatorname{SL}(n,\Bbb R)$ is connected.
Nov 7, 2014
question
18
How to prove that factors of homogeneous polynomial are homogeneous?
Mar 25, 2016
question
12
Check whether $f \mapsto f+ \frac{df}{dx}$ is injective or surjective
May 18, 2019
question
12
$T$ be linear operator on $V$ by $T(B)=AB-BA$. Prove that if A is a nilpotent matrix, then $T$ is a nilpotent operator.
Sep 19, 2014
question
12
$A$ and $A^2$ have same characteristic polynomial
Jul 13, 2019
question
10
If$(ab)^n=a^nb^n$ & $(|G|, n(n-1))=1$ then $G$ is abelian [closed]
Sep 12, 2014
answer
9
What does it mean for a metric space to be isometrically embedded in another space?
Oct 11, 2014
question
8
Prove that for any $n$, we have $\sum_{i=1}^n \frac{a_i}i \ge a_n $.
Oct 6, 2014
question
7
How many maximum triangles can be made?
Jan 4, 2019
question
7
If $f(b)-f(a)=(b-a)f'(\frac{a+b}{2})$ prove that any such function is a polynomial of degree $2$ [duplicate]
May 12, 2019
Top network posts
View all network posts
7
How to defend plagiarism in master's thesis
5
How much time will it take to get my passport back if I am applying for multiple Schengen visa countries?

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.