MathOverflow
River Li's user avatar
River Li's user avatar
River Li's user avatar
River Li
  • Member for 4 years, 10 months
  • Last seen more than 1 year ago
Profile Activity
Stats
848
reputation
0
reached
0
answers
0
questions
Communities
Badges
View all badges
This user doesn’t have any gold badges yet.
4
silver badges
This user doesn’t have any bronze badges yet.
Posts

This user hasn’t posted yet.

Top network posts
View all network posts
42
About the inequality $x^{x^{x^{x^{x^x}}}} \ge \frac12 x^2 + \frac12$
21
The limit and asymptotic analysis of $a_n^2 - n$ from $a_{n+1} = \frac{a_n}{n} + \frac{n}{a_n}$
21
(update) Is there always a real $x$ such that $\cos n_1 x + \cos n_2 x + \cos n_3 x < -2$?
18
Without calculator prove that $9^{\sqrt{2}} < \sqrt{2}^9$
18
Prove that $a^{4/a} + b^{4/b} + c^{4/c} \ge 3$