User Joshua Farrell

12 votes

2 answers

427 views

How did Gauss conjecture there were nine Heegner numbers?

asked Mar 7, 2019 at 10:58

9 votes

4 answers

891 views

Deciding on mathematical notation

asked Jul 12, 2017 at 23:19

8 votes

2 answers

1k views

How are values of the Dirichlet Beta function derivative derived?

asked Jun 27, 2018 at 14:14

6 votes

0 answers

380 views

Examples of when a quotient of sums is equal to the sum of quotients?

asked Mar 26, 2018 at 17:44

6 votes

1 answer

528 views

To what extent do you explain a proof? [closed]

asked Jun 7, 2017 at 0:49

5 votes

1 answer

186 views

How can I prove this equality and general derivative?

asked Jun 3, 2017 at 21:41

5 votes

2 answers

255 views

This formula is on Wolfram Mathworld but I cannot find it anywhere else online?

asked Jun 26, 2018 at 1:45

5 votes

2 answers

268 views

I have written a small paper, what now? [closed]

asked Jan 20, 2018 at 15:52

5 votes

3 answers

104 views

Realising I don't truly understand differentiation when not stated explicitly.

asked May 24, 2019 at 11:48

4 votes

1 answer

784 views

How dense are primes congruent to 1 and 3 (mod 4)? [duplicate]

asked Aug 9, 2019 at 2:57

4 votes

1 answer

86 views

What is known about sequences $a_{n}$ such that $\sum_{n=1}^{N}(-1)^{a_{n}}n = 0$?

asked Apr 2, 2018 at 21:39

4 votes

1 answer

96 views

Is there a formula that generalizes $\sin A+\sin B+\sin C = 4\cos\frac{A}{2}\cos\frac{B}{2}\cos\frac{C}{2}$ (where $A+B+C=\pi$) to four angles?

asked Jun 2, 2018 at 16:52

3 votes

2 answers

214 views

Where can I find papers and research on the Alternating Hurwitz Zeta Function?

asked Feb 10, 2019 at 3:26

3 votes

2 answers

75 views

Should one include a long standard proof of a small lemma in a paper? [closed]

asked May 27, 2019 at 0:13

3 votes

2 answers

239 views

Intuitive understanding of ideal $I = (x+1,x^2+1)$ and the quotient $\Bbb Z[x]/I$

asked Feb 3, 2020 at 11:30

3 votes

2 answers

371 views

Primary ideals in $\mathbb{Z}[\sqrt{-5}]$?

asked May 1, 2020 at 15:33

2 votes

1 answer

43 views

Show that $f(y)$ is not in the ideal $\langle xy, x-yz \rangle \triangleleft k[x,y,z]$

asked May 4, 2020 at 20:40

2 votes

1 answer

250 views

Proof that all ideals in a Noetherian ring have a primary decomposition?

asked May 9, 2020 at 23:06

2 votes

0 answers

65 views

Relationship between Galois Correspondence and the Fourth Isomorphism Theorem (Correspondence Theorem)?

asked Apr 17, 2020 at 13:17

2 votes

0 answers

63 views

How to determine whether a result is notable enough? [closed]

asked Jun 2, 2019 at 16:37

2 votes

0 answers

80 views

Is there a Lay-Mathematician explanation for the proof technique of Zhang's Theorem? [closed]

asked Aug 15, 2019 at 3:34

2 votes

1 answer

502 views

Where does this formula for the product of Gamma Functions come from?

asked Nov 16, 2017 at 2:56

2 votes

1 answer

102 views

How is this nested radical expression for $\cos(2\pi /7)$ proven?

asked Mar 28, 2018 at 3:20

1 vote

0 answers

24 views

How would you derive an infinite radical expression for a trigonometric function?

asked Mar 28, 2018 at 20:07

1 vote

3 answers

112 views

Integer solutions to $a^{2}+b^{2}+c^{2} = d^{2}+e^{2}+f^{2}$, where $a, b, c, d, e, f \neq 0$

asked Dec 20, 2017 at 12:20

1 vote

2 answers

72 views

Consider two conditionally convergent series which are reorderings of each other, I conjecture them equal. Is there any tools I can use to prove this?

asked Nov 23, 2018 at 9:53

1 vote

2 answers

64 views

Are basis vectors of an eigenspace themselves eigenvectors?

asked Oct 8, 2018 at 9:04

1 vote

1 answer

48 views

Are there equivalents of fields, groups and whatnot with hyper operations?

asked Oct 12, 2018 at 13:38

1 vote

2 answers

85 views

What if Euler's formula was defined differently?

asked May 19, 2018 at 18:19

1 vote

2 answers

71 views

Are there solutions to the following simultaneous equations?

asked Mar 7, 2018 at 16:41

Stack Exchange Network

56 Questions

How did Gauss conjecture there were nine Heegner numbers?

Deciding on mathematical notation

How are values of the Dirichlet Beta function derivative derived?

Examples of when a quotient of sums is equal to the sum of quotients?

To what extent do you explain a proof? [closed]

How can I prove this equality and general derivative?

This formula is on Wolfram Mathworld but I cannot find it anywhere else online?

I have written a small paper, what now? [closed]

Realising I don't truly understand differentiation when not stated explicitly.

How dense are primes congruent to 1 and 3 (mod 4)? [duplicate]

What is known about sequences $a_{n}$ such that $\sum_{n=1}^{N}(-1)^{a_{n}}n = 0$?

Is there a formula that generalizes $\sin A+\sin B+\sin C = 4\cos\frac{A}{2}\cos\frac{B}{2}\cos\frac{C}{2}$ (where $A+B+C=\pi$) to four angles?

Where can I find papers and research on the Alternating Hurwitz Zeta Function?

Should one include a long standard proof of a small lemma in a paper? [closed]

Intuitive understanding of ideal $I = (x+1,x^2+1)$ and the quotient $\Bbb Z[x]/I$

Primary ideals in $\mathbb{Z}[\sqrt{-5}]$?

Show that $f(y)$ is not in the ideal $\langle xy, x-yz \rangle \triangleleft k[x,y,z]$

Proof that all ideals in a Noetherian ring have a primary decomposition?

Relationship between Galois Correspondence and the Fourth Isomorphism Theorem (Correspondence Theorem)?

How to determine whether a result is notable enough? [closed]

Is there a Lay-Mathematician explanation for the proof technique of Zhang's Theorem? [closed]

Where does this formula for the product of Gamma Functions come from?

How is this nested radical expression for $\cos(2\pi /7)$ proven?

How would you derive an infinite radical expression for a trigonometric function?

Integer solutions to $a^{2}+b^{2}+c^{2} = d^{2}+e^{2}+f^{2}$, where $a, b, c, d, e, f \neq 0$

Consider two conditionally convergent series which are reorderings of each other, I conjecture them equal. Is there any tools I can use to prove this?

Are basis vectors of an eigenspace themselves eigenvectors?

Are there equivalents of fields, groups and whatnot with hyper operations?

What if Euler's formula was defined differently?

Are there solutions to the following simultaneous equations?