User Erel Segal-Halevi

31 votes

4 answers

4k views

Why does a product $\lim_{n\to\infty} \prod_{i=1}^n (1- \frac{1}{n+2i})$ lead to infinity?

asked Apr 3 at 18:41

30 votes

1 answer

542 views

How many nodes in the smallest $k$-dense graph?

asked Aug 11, 2016 at 12:20

26 votes

2 answers

829 views

Writing real numbers as sums of zeros and ones

asked Nov 11, 2015 at 18:45

25 votes

4 answers

1k views

square cake with raisins

asked May 17, 2013 at 15:41

19 votes

1 answer

410 views

Ordering people with friendship constraints

asked Aug 3, 2016 at 5:29

18 votes

2 answers

572 views

Largest rectangle not touching any rock in a square field

asked Nov 17, 2015 at 21:01

18 votes

4 answers

2k views

How fat is a triangle?

asked Jun 29, 2014 at 12:10

18 votes

2 answers

1k views

How many unit squares can overlap a given unit square without overlapping each other?

asked Dec 30, 2014 at 15:17

15 votes

2 answers

998 views

cutting a cake without destroying the toppings

asked Sep 30, 2013 at 12:24

15 votes

1 answer

2k views

Submitting for publication in American Mathematical Monthly

asked Apr 13, 2018 at 8:15

12 votes

2 answers

571 views

Length of a union of intervals

asked Aug 7, 2019 at 18:52

11 votes

2 answers

249 views

Is it always possible to cut disjoint 0.359 of two rectangles?

asked Aug 19, 2018 at 7:03

11 votes

2 answers

281 views

What are the functions for which ${f f''\over f'^2} < 2$?

asked Aug 15, 2017 at 14:41

10 votes

1 answer

1k views

Lyapunov Theorem for beginners

asked Oct 2, 2013 at 13:10

10 votes

6 answers

896 views

How much is $\lceil\frac{1}{\infty}\rceil$?

asked Jul 31, 2013 at 21:13

10 votes

1 answer

207 views

Splitting a continuous monotonically-increasing function $f(x)$ as $h(x)+h(x+\epsilon) = f(x)$

asked Jul 8, 2020 at 19:47

9 votes

0 answers

206 views

Expected value of the maximum minimum set

asked May 11, 2021 at 17:38

9 votes

3 answers

225 views

One square per person

asked May 23, 2013 at 15:06

9 votes

1 answer

500 views

Geometry and land

asked Sep 28, 2014 at 22:00

9 votes

0 answers

236 views

Is there a combinatorial proof to this inequality?

asked Jan 7, 2018 at 17:58

9 votes

1 answer

9k views

How to tell whether a curve has a regular parametrization?

asked Jul 20, 2015 at 5:59

8 votes

2 answers

385 views

Balanced cutting of a convex polygon

asked Dec 26, 2015 at 17:24

8 votes

1 answer

7k views

Is there a meaning to the notation "\arg \sup"?

asked Jul 18, 2016 at 6:37

8 votes

1 answer

197 views

If $n={k^2 \choose k}$, then what is $k$?

asked Apr 10, 2016 at 6:40

8 votes

1 answer

131 views

Is the probability that half the sets are half red, more than half?

asked Jul 19, 2017 at 2:33

8 votes

1 answer

940 views

If a function is not-strictly-increasing, is there an interval on which it is weakly decreasing?

asked Apr 21, 2017 at 14:08

8 votes

1 answer

840 views

Characterization of the quasi-arithmetic mean

asked Jun 13, 2019 at 20:04

8 votes

1 answer

247 views

Largest rectangle bounded under a function

asked Dec 31, 2014 at 11:37

8 votes

1 answer

168 views

A function that crosses each horizontal line only finitely many times

asked Dec 23, 2014 at 8:29

8 votes

2 answers

441 views

Do two closed subsets of $[0, 1]$ with measure $\frac{1}{2}$ intersect?

asked May 3, 2015 at 9:00

Stack Exchange Network

357 Questions

Why does a product $\lim_{n\to\infty} \prod_{i=1}^n (1- \frac{1}{n+2i})$ lead to infinity?

How many nodes in the smallest $k$-dense graph?

Writing real numbers as sums of zeros and ones

square cake with raisins

Ordering people with friendship constraints

Largest rectangle not touching any rock in a square field

How fat is a triangle?

How many unit squares can overlap a given unit square without overlapping each other?

cutting a cake without destroying the toppings

Submitting for publication in American Mathematical Monthly

Length of a union of intervals

Is it always possible to cut disjoint 0.359 of two rectangles?

What are the functions for which ${f f''\over f'^2} < 2$?

Lyapunov Theorem for beginners

How much is $\lceil\frac{1}{\infty}\rceil$?

Splitting a continuous monotonically-increasing function $f(x)$ as $h(x)+h(x+\epsilon) = f(x)$

Expected value of the maximum minimum set

One square per person

Geometry and land

Is there a combinatorial proof to this inequality?

How to tell whether a curve has a regular parametrization?

Balanced cutting of a convex polygon

Is there a meaning to the notation "\arg \sup"?

If $n={k^2 \choose k}$, then what is $k$?

Is the probability that half the sets are half red, more than half?

If a function is not-strictly-increasing, is there an interval on which it is weakly decreasing?

Characterization of the quasi-arithmetic mean

Largest rectangle bounded under a function

A function that crosses each horizontal line only finitely many times

Do two closed subsets of $[0, 1]$ with measure $\frac{1}{2}$ intersect?