List questions from arithmetic-combinatorics

Published on 08 Jun 2015 - 6:30

352

Views

Combinatorics with a condition.

Published on 12 Oct 2015 - 14:48

257

Views

find the least natural number n such that if the set $\{1,2,...,n\}$ is arbitrarily divided into two nonintersecting subsets

Published on 15 Dec 2015 - 23:23

1.4k

Views

Sum and product of k real numbers > 0 is unique?

Published on 06 Jan 2016 - 18:11

54

Views

Representing a number as $a^2+db^2$ given $d$

Published on 22 Apr 2016 - 0:05

96

Views

Numbers not of the form $x^2+My^2$

Published on 13 Jun 2013 - 8:37

807

Views

Narcissistic numbers in other bases

Published on 21 Jun 2013 - 2:40

356

Views

What are Green's almost primes?

Published on 30 Dec 2013 - 6:59

345

Views

Uses of Chevalley-Warning

Published on 31 Jul 2011 - 17:51

427

Views

Expectation of a Random Subset of the Roots of Unity.

Published on 19 Jan 2012 - 20:58

305

Views

Given a list of $2^n$ nonzero vectors in $GF(2^n)$, do some $2^{n-1}$ of them sum to 0?

Published on 19 Feb 2012 - 23:45

935

Views

Multiset Combination in Combinatorics

Published on 13 May 2012 - 19:38

62

Views

Combinations problem with 2 contradicted answers!

Published on 30 Jun 2012 - 22:48

265

Views

Combinatorics in finite cyclic groups

Published on 17 Mar 2013 - 8:35

42

Views

Using wavelet decompositions to solve Problems in additive combinatorics

Published on 13 Aug 2020 - 15:14

List Question

Least moving-overlapped subset of [1..n] that has the biggest natural density as possible.

Combinatorics with a condition.

find the least natural number n such that if the set $\{1,2,...,n\}$ is arbitrarily divided into two nonintersecting subsets

Sum and product of k real numbers > 0 is unique?

Representing a number as $a^2+db^2$ given $d$

Numbers not of the form $x^2+My^2$

Narcissistic numbers in other bases

What are Green's almost primes?

Uses of Chevalley-Warning

Expectation of a Random Subset of the Roots of Unity.

Given a list of $2^n$ nonzero vectors in $GF(2^n)$, do some $2^{n-1}$ of them sum to 0?

Multiset Combination in Combinatorics

Combinations problem with 2 contradicted answers!

Combinatorics in finite cyclic groups

Using wavelet decompositions to solve Problems in additive combinatorics

Trending Questions

Popular # Hahtags

Popular Questions