User Craig Feinstein

75 votes

1 answer

12k views

What if the Riemann Hypothesis were false?

asked Jul 11, 2013 at 14:57

35 votes

9 answers

9k views

Why is integer factoring hard while determining whether an integer is prime easy?

asked Dec 5, 2022 at 13:25

31 votes

9 answers

11k views

Is there a "mathematical" definition of "simplify"?

asked Apr 4, 2013 at 14:04

27 votes

8 answers

13k views

Why have mathematicians used differential equations to model nature instead of difference equations

asked Sep 29, 2014 at 17:04

22 votes

2 answers

7k views

Which types of Diophantine equations are solvable?

asked Jan 13, 2011 at 17:26

19 votes

6 answers

2k views

Theorems which say "such and such method cannot possibly prove FLT"

asked Jul 13, 2010 at 0:30

16 votes

4 answers

25k views

Is there an efficient algorithm for finding a square root modulo a prime power?

asked Jan 14, 2011 at 15:28

15 votes

4 answers

1k views

The product of n radii in an ellipse

asked Jun 25, 2010 at 18:12

14 votes

1 answer

3k views

Can Shor's Algorithm be modified to run efficiently on a classical computer?

asked Apr 26, 2015 at 5:12

13 votes

1 answer

662 views

Frankl's conjecture restricted to finite topological spaces

asked Nov 26, 2017 at 18:22

11 votes

1 answer

559 views

Distribution of subset-sums

asked Jan 15, 2014 at 16:07

7 votes

1 answer

434 views

Number of unique sortings of subset-sums

asked Sep 20, 2010 at 13:39

7 votes

4 answers

974 views

Are there any fast algorithms for factoring integers that don't work by searching for smooth numbers?

asked Dec 1, 2013 at 18:01

6 votes

0 answers

360 views

Examples in which probabilistic heuristic reasoning fails

asked Aug 21, 2018 at 16:18

5 votes

1 answer

198 views

A nowhere-zero point in a linear mapping conjecture

asked Oct 3, 2018 at 15:23

5 votes

1 answer

461 views

Discrete log problem modified

asked Jan 9, 2023 at 1:29

4 votes

1 answer

752 views

Trick for the sum-product problem

asked Mar 22, 2019 at 17:30

4 votes

1 answer

725 views

Heuristic probabilistic argument for the Navier-Stokes existence and smoothness conjecture

asked Oct 5, 2014 at 1:02

3 votes

0 answers

130 views

Graeco-Latin squares and outer-automorphisms

asked May 1, 2019 at 1:39

2 votes

3 answers

681 views

Solving the unknotting problem by pulling both ends of the string

asked Mar 12 at 15:26

2 votes

2 answers

454 views

2d incompressible Euler equations under periodic boundary conditions

asked Jan 16, 2019 at 23:54

1 vote

1 answer

7k views

Finding the square root modulo n, when the factors of n are known

asked Feb 9, 2011 at 22:15

1 vote

0 answers

340 views

The field generated by radii of an ellipse

asked Jun 28, 2010 at 1:26

1 vote

1 answer

863 views

Sphere packing and kissing numbers in 3D

asked May 19, 2019 at 2:56

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24 Questions

What if the Riemann Hypothesis were false?

Why is integer factoring hard while determining whether an integer is prime easy?

Is there a "mathematical" definition of "simplify"?

Why have mathematicians used differential equations to model nature instead of difference equations

Which types of Diophantine equations are solvable?

Theorems which say "such and such method cannot possibly prove FLT"

Is there an efficient algorithm for finding a square root modulo a prime power?

The product of n radii in an ellipse

Can Shor's Algorithm be modified to run efficiently on a classical computer?

Frankl's conjecture restricted to finite topological spaces

Distribution of subset-sums

Number of unique sortings of subset-sums

Are there any fast algorithms for factoring integers that don't work by searching for smooth numbers?

Examples in which probabilistic heuristic reasoning fails

A nowhere-zero point in a linear mapping conjecture

Discrete log problem modified

Trick for the sum-product problem

Heuristic probabilistic argument for the Navier-Stokes existence and smoothness conjecture

Graeco-Latin squares and outer-automorphisms

Solving the unknotting problem by pulling both ends of the string

2d incompressible Euler equations under periodic boundary conditions

Finding the square root modulo n, when the factors of n are known

The field generated by radii of an ellipse

Sphere packing and kissing numbers in 3D