Category
page 2Combinatorics
topological combinatorics
mathematical subject
Cameron–Erdős conjecture
Theorem on the number of sum-free sets contained in 1,...,N
zero-sum problem
mathematical problem
Twelvefold way
systematic classification of 12 related enumerative problems concerning two finite sets
constant-recursive sequence
sequence satisfying a homogeneous linear recurrence with constant coefficients
group testing
A procedure that breaks up the task of identifying certain objects into tests on groups of items.
Orthogonal array
type of mathematical array
Sim
pencil game
Toothpick sequence
geometric fractal-like pattern
Dinitz conjecture
theorem in combinatorics on the extension of arrays to partial Latin squares
transversal
set containing exactly one element from each member of a family of sets
No-three-in-line problem
topic in discrete geometry
De Arte Combinatoria
scientific book by Gottfried Wilhelm Leibniz
Stirling permutation
type of permutation in combinatorial mathematics
extremal combinatorics
study of maximum or minimum size of a set under given conditions
infinitary combinatorics
extension of ideas in combinatorics to infinite sets
Lubell–Yamamoto–Meshalkin inequality
inequality of sizes of sets in the Sperner family