User Dominic Michaelis - Mathematics Stack Exchange

332 votes

31 answers

39k views

Nice examples of groups which are not obviously groups

asked Apr 15, 2013 at 15:02

52 votes

3 answers

4k views

Is every function with the intermediate value property a derivative?

asked Mar 11, 2013 at 7:24

25 votes

1 answer

969 views

Showing a filter on the Power set of $\mathbb{Z}$ is a one point Filter

asked Apr 27, 2013 at 16:08

17 votes

2 answers

899 views

Does $\sin(x)=y$ have a solution in $\mathbb{Q}$ beside $x=y=0$

asked Feb 16, 2013 at 6:06

11 votes

2 answers

2k views

Whats the connection between functions with curl 0 and holomorphic functions

asked Apr 5, 2013 at 14:54

8 votes

2 answers

700 views

Topological way to show , if $X$ finite than there is no bijection to $X\setminus{x}$ while $x\in X$

asked Feb 19, 2013 at 21:17

8 votes

2 answers

2k views

Integrating $\frac{x^3}{\exp(x)-1}$ from $0$ to $\infty$

asked Jul 29, 2015 at 18:19

7 votes

2 answers

2k views

Examples of non-cyclic group with a cyclic automorphism group

asked May 22, 2013 at 20:08

7 votes

2 answers

400 views

What happens after the cardinality $\mathfrak{c}$?

asked May 31, 2013 at 9:53

7 votes

1 answer

925 views

Outer measure discontinuous from below

asked Jul 14, 2013 at 16:48

5 votes

0 answers

275 views

Weierstrass Product of $z\cos(z)-\sin(z)$

asked Sep 17, 2015 at 17:46

4 votes

1 answer

181 views

Is a $C^\infty $ function local monotone at a minimum?

asked Feb 15, 2013 at 16:46

4 votes

1 answer

212 views

Entire extension of a function on a set with an accumulation point

asked Sep 3, 2013 at 6:58

1 vote

1 answer

2k views

Laurent expansion with essential singularity

asked Feb 26, 2013 at 13:02

1 vote

1 answer

54 views

Hint for a combinatorial proof of $n! \binom{n-1}{k-1} = \sum_{j=0}^n \overline{s}_{n,j} \tilde{S}_{j,k}$

asked May 8 at 19:13

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15 Questions

Nice examples of groups which are not obviously groups

Is every function with the intermediate value property a derivative?

Showing a filter on the Power set of $\mathbb{Z}$ is a one point Filter

Does $\sin(x)=y$ have a solution in $\mathbb{Q}$ beside $x=y=0$

Whats the connection between functions with curl 0 and holomorphic functions

Topological way to show , if $X$ finite than there is no bijection to $X\setminus{x}$ while $x\in X$

Integrating $\frac{x^3}{\exp(x)-1}$ from $0$ to $\infty$

Examples of non-cyclic group with a cyclic automorphism group

What happens after the cardinality $\mathfrak{c}$?

Outer measure discontinuous from below

Weierstrass Product of $z\cos(z)-\sin(z)$

Is a $C^\infty $ function local monotone at a minimum?

Entire extension of a function on a set with an accumulation point

Laurent expansion with essential singularity

Hint for a combinatorial proof of $n! \binom{n-1}{k-1} = \sum_{j=0}^n \overline{s}_{n,j} \tilde{S}_{j,k}$