Skip to main content
Search type Search syntax
Tags [tag]
Exact "words here"
Author user:1234
user:me (yours)
Score score:3 (3+)
score:0 (none)
Answers answers:3 (3+)
answers:0 (none)
isaccepted:yes
hasaccepted:no
inquestion:1234
Views views:250
Code code:"if (foo != bar)"
Sections title:apples
body:"apples oranges"
URL url:"*.example.com"
Saves in:saves
Status closed:yes
duplicate:no
migrated:no
wiki:no
Types is:question
is:answer
Exclude -[tag]
-apples
For more details on advanced search visit our help page
Results tagged with
Search options not deleted user 45255

Hypergraphs are generalizations of graphs, where edges can be made of more than two vertices.

2 votes

Constructions of $2-(v,3,3)$-designs

Yuichiro's is the best answer, but here's another "cheat" answer (which I nonetheless think is kind of neat): Take a PBD$(v,\{3,5\})$, triple each block of size three, and replace each block of size …
Peter Dukes's user avatar
  • 1,091