Stack Exchange Network

Stack Exchange network consists of 175 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

  7. current community

    your communities

    more stack exchange communities

    company blog
Mathematics
Meta user
Network profile
678
reputation
4
8

PolyaPal

Retired...interested in classical analysis, number theory, linear algebra, inequalities...math journal problem column addict...New York Times Crossword every day

16
answers
1
question
~9k
people reached
  • New York State
  • Member for 7 years, 5 months
  • 165 profile views
  • Last seen Mar 1 at 0:49

Communities (3)

Top network posts

We respect a laser-like focus on one topic.

Top tags (33)

Score 27
Posts 1
Posts % 6
Score 8
Posts 4
Score 5
Posts 2
Score 4
Posts 3
Score 3
Posts 4
Score 2
Posts 2
View all tags →

Top posts (17) All Questions Answers | Votes Newest

27 What is the most unusual proof you know that $\sqrt{2}$ is irrational? Jun 10 '15
4 Prove or disprove $\lim\limits_{n \to \infty} (p_{n+1} - p_{n})/\sqrt{p_n} = 0$ Jul 23 '12
4 When to give up on a hard math problem? Jun 11 '14
4 If both $a,b>0$, then $a^ab^b \ge a^bb^a$ Dec 16 '14
2 What is an odd prime? Mar 11 '15
2 Prove that the $p$-mean is an increasing function of $p$ Jun 17 '14
2 Limit of sum with binomial coefficient Jun 26 '12
2 Does $\det(A + B) = \det(A) + \det(B)$ hold? Oct 7 '15
2 Is there a branch of Mathematics which connects Calculus and Discrete Math / Number Theory? Jan 5 '16
2 What isn't a vector space? Oct 3 '17
View all questions and answers →

Badges (12)

Gold

—

Silver

4

Rarest

Bronze

8

Rarest

View all badges →