User mick

13 votes

3 answers

720 views

Supremum of $ a_n = a_{n-1}^3 - a_{n-2} $

asked Dec 24, 2019 at 16:13

10 votes

2 answers

1k views

Why is $\sup f_- (n) \inf f_+ (m) = \frac{5}{4} $?

asked Feb 1, 2019 at 18:07

8 votes

1 answer

339 views

Density of extended Mersenne numbers?

asked Feb 12, 2023 at 22:56

8 votes

1 answer

495 views

$f(f(z)) = z , f(\exp(z)) = \exp(f(z)) $?

asked Mar 11, 2023 at 22:03

4 votes

0 answers

121 views

$f(n) = \frac{n^2 + n + 4}{2}$, $g(f(n)) = f(g(n))$ such that $g(n)$ is an integer

asked Jun 20, 2023 at 22:38

4 votes

1 answer

363 views

About $a_n = \frac{a_{n-1}(a_{n-1} + C)}{a_{n-2}}.$

asked Dec 17, 2019 at 17:31

4 votes

1 answer

170 views

When is a solution $P(f'(x)) = Q(f(x))$ periodic or double periodic?

asked Apr 2 at 19:25

3 votes

0 answers

185 views

Does data suggest $| \pi_2 (n) - 2\Pi \int_2^n \frac{dx}{\ln(x)^2} | < \ln(n+2)^2 \sqrt (n+2) $?

asked Nov 22, 2015 at 16:19

2 votes

0 answers

137 views

Primes of the form $\frac{n^2-n+4}{2}$ satisfy Hardy-Littlewood analogue?

asked Mar 29, 2021 at 21:56

1 vote

0 answers

166 views

Nonassociative algebras closed under $\sqrt{\ }$?

asked Mar 22, 2021 at 0:41

1 vote

0 answers

237 views

Asymptotics to Taylor expansions?

asked Sep 28, 2015 at 0:15

1 vote

1 answer

445 views

Formal group law and Koenigs function conjecture?

asked Mar 3, 2019 at 18:02

1 vote

0 answers

472 views

The mysterious numbers $ \frac{13}{20} $ and $20$?

asked Aug 28, 2019 at 11:15

1 vote

0 answers

62 views

About nilpotent Jordan algebras, matrix representations and formally real algebras

asked May 28, 2023 at 23:08

1 vote

0 answers

124 views

$\sin(\frac{\pi}{p}) $ not expressible by positive radicals and $\sin(\frac{\pi}{q_i})$?

asked Mar 2, 2023 at 22:33

0 votes

0 answers

172 views

When does this commutative non-associative algebra have nilpotent elements?

asked Feb 18, 2023 at 12:22

0 votes

1 answer

240 views

Prime gap conjecture $ \pi_{2a}(n+(6a+4)^3)+(6a+4)^3 > \pi_{4a}(n)$ counterexamples?

asked Jun 20, 2023 at 22:46

0 votes

0 answers

153 views

Do we have tetration uniqueness by $ A = \inf \sum_n a_n^2 $?

asked Jan 27 at 11:57

-1 votes

1 answer

227 views

Can we classify all commutative unital algebras over the reals that are closed under $\sqrt{}$?

asked Jan 27 at 12:01

-1 votes

0 answers

130 views

Trig conjecture about square roots and Arcsin

asked Nov 10 at 19:10

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20 Questions

Supremum of $ a_n = a_{n-1}^3 - a_{n-2} $

Why is $\sup f_- (n) \inf f_+ (m) = \frac{5}{4} $?

Density of extended Mersenne numbers?

$f(f(z)) = z , f(\exp(z)) = \exp(f(z)) $?

$f(n) = \frac{n^2 + n + 4}{2}$, $g(f(n)) = f(g(n))$ such that $g(n)$ is an integer

About $a_n = \frac{a_{n-1}(a_{n-1} + C)}{a_{n-2}}.$

When is a solution $P(f'(x)) = Q(f(x))$ periodic or double periodic?

Does data suggest $| \pi_2 (n) - 2\Pi \int_2^n \frac{dx}{\ln(x)^2} | < \ln(n+2)^2 \sqrt (n+2) $?

Primes of the form $\frac{n^2-n+4}{2}$ satisfy Hardy-Littlewood analogue?

Nonassociative algebras closed under $\sqrt{\ }$?

Asymptotics to Taylor expansions?

Formal group law and Koenigs function conjecture?

The mysterious numbers $ \frac{13}{20} $ and $20$?

About nilpotent Jordan algebras, matrix representations and formally real algebras

$\sin(\frac{\pi}{p}) $ not expressible by positive radicals and $\sin(\frac{\pi}{q_i})$?

When does this commutative non-associative algebra have nilpotent elements?

Prime gap conjecture $ \pi_{2a}(n+(6a+4)^3)+(6a+4)^3 > \pi_{4a}(n)$ counterexamples?

Do we have tetration uniqueness by $ A = \inf \sum_n a_n^2 $?

Can we classify all commutative unital algebras over the reals that are closed under $\sqrt{}$?

Trig conjecture about square roots and Arcsin