Seva's user avatar
Seva's user avatar
Seva's user avatar
Seva
  • Member for 13 years, 2 months
  • Last seen this week
52 votes

Techniques for debugging proofs

26 votes
Accepted

Existence of a zero-sum subset

23 votes
Accepted

Consecutive non-quadratic residues

23 votes
Accepted

All polynomials are the sum of three others, each of which has only real roots

22 votes

Is there a set of positive integers of density 1 which contains no infinite arithmetic progression?

20 votes

Number of vectors so that no two subset sums are equal

19 votes
Accepted

Does small Perron-Frobenius eigenvalue imply small entries for integral matrices?

18 votes
Accepted

When does $P(a−b)=0$ for $a≠b$ ensure $P(0)=0$? (Continued.)

17 votes
Accepted

Existence of range of numbers containing a coprime to given n

17 votes
Accepted

sum, integral of certain functions

17 votes

Is there an "analytical" version of Tao's uncertainty principle?

16 votes

How $a+b$ can grow when $a!b! \mid n!$

16 votes
Accepted

The maximal subset of a finite field where the sum of any subset is non-zero

15 votes

Examples of eventual counterexamples

15 votes

Can you cover the Boolean cube $\{0,1\}^n$ with $O(1)$ Hamming-balls each of radius $n/2-c\sqrt{n}$?

15 votes
Accepted

How are such sets of natural numbers called?

15 votes
Accepted

Multiples in sets of positive upper density

14 votes

Decomposing a finite group as a product of subsets

14 votes
Accepted

Near-Legendre Conjecture

14 votes
Accepted

Set of integers having finite intersection with the image of any polynomial of degree $\geq 2$

14 votes

Sets that are not sum of subsets

13 votes

More open problems

12 votes

How to recognise that the polynomial method might work

12 votes

Sums of powers mod p

12 votes
Accepted

Paths in groups

12 votes
Accepted

The maximal "nearly convex" function

12 votes
Accepted

Proof of Minkowski theorem using harmonic analysis

12 votes
Accepted

On approximation of $\sum_{a,b=1}^n\gcd(a,b)$

12 votes

On Euler's polynomial $x^2+x+41$

12 votes

Smallest set such that all arithmetic progression will always contain at least a number in a set

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