Question

If set of divisors of elements of a difference set $\Delta S = S - S \subset R$ a commutative ring is the whole ring (!) then $\Delta S$ is an ideal

score 34 · Answer 1 · 2023-10-10 23:51:08

34

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If set of divisors of elements of a difference set $\Delta S = S - S \subset R$ a commutative ring is the whole ring (!) then $\Delta S$ is an ideal

Published on 10 Oct 2023 - 23:51

score 91 · Answer 2 · 2024-03-31 17:49:01

91

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Why is the difference of consecutive primes from Fibonacci sequence divisible by $4$?

Published on 31 Mar 2024 - 17:49

score 127 · Answer 3 · 2015-05-06 17:19:56

127

Views

Constructing $\lambda$-difference sets

Published on 06 May 2015 - 17:19

score 907 · Answer 4 · 2013-04-17 01:13:36

907

Views

Show that the complement of a difference set is a difference set

Published on 17 Apr 2013 - 1:13

score 189 · Answer 5 · 2013-08-02 20:25:40

189

Views

Number of Inequivalent Difference Sets In Elementary Abelian 2-groups

Published on 02 Aug 2013 - 20:25

score 288 · Answer 6 · 2013-09-01 21:57:12

288

Views

Difference sets avoiding quadratic residues

Published on 01 Sep 2013 - 21:57

score 109 · Answer 7 · 2017-04-12 16:58:02

109

Views

Is there a canonical form for difference sets?

Published on 12 Apr 2017 - 16:58

score 140 · Answer 8 · 2017-06-17 02:13:02

140

Views

Proof that the symmetric design isomorphic to $PG(m,q)$ has an automorphism acting regularly on points (Singer's Theorem)

Published on 17 Jun 2017 - 2:13

score 494 · Answer 9 · 2012-02-29 19:50:39

494

Views

Combinatorial design difference set proof: adding 0 to Paley difference set

Published on 29 Feb 2012 - 19:50

score 190 · Answer 10 · 2012-07-08 00:56:59

190

Views

Constructions of small set with big difference set

Published on 08 Jul 2012 - 0:56

score 373 · Answer 11 · 2012-11-10 10:02:30

373

Views

The relation between perfect difference sets and finite projective planes

Published on 10 Nov 2012 - 10:02

score 83 · Answer 12 · 2021-07-14 14:13:04

83

Views

How to convert sets of ODE to difference equations

Published on 14 Jul 2021 - 14:13

score 51 · Answer 13 · 2022-06-05 00:55:01

What is that called in set theory that can be used in programming to make set A equal to set B by adding to and subtracting from B the differences?

score 52 · Answer 14 · 2022-11-23 16:54:03

52

Views

Characterization of density through the interior

Published on 23 Nov 2022 - 16:54

score 31 · Answer 15 · 2022-12-01 08:59:54

31

Views

Reference request: Algorithms for constructing Perfect Difference Sets

Published on 01 Dec 2022 - 8:59

List Question

If set of divisors of elements of a difference set $\Delta S = S - S \subset R$ a commutative ring is the whole ring (!) then $\Delta S$ is an ideal

Why is the difference of consecutive primes from Fibonacci sequence divisible by $4$?

Constructing $\lambda$-difference sets

Show that the complement of a difference set is a difference set

Number of Inequivalent Difference Sets In Elementary Abelian 2-groups

Difference sets avoiding quadratic residues

Is there a canonical form for difference sets?

Proof that the symmetric design isomorphic to $PG(m,q)$ has an automorphism acting regularly on points (Singer's Theorem)

Combinatorial design difference set proof: adding 0 to Paley difference set

Constructions of small set with big difference set

The relation between perfect difference sets and finite projective planes

How to convert sets of ODE to difference equations

What is that called in set theory that can be used in programming to make set A equal to set B by adding to and subtracting from B the differences?

Characterization of density through the interior

Reference request: Algorithms for constructing Perfect Difference Sets

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