combinatorics (843B)
1 # Combinatorics 2 3 ## Subareas 4 5 - [enumerative_combinatorics] 6 - [extremal_combinatorics] 7 - [word_combinatorics] 8 9 ## Results 10 11 - [ramsey_turan_theory] 12 - [ramsey_theorem] 13 - [sunflower_lemma] 14 - [higmans_lemma] 15 - erdos-szekeres theorem on the existence of nonincreasing/nondecreasing [subsequence] of size sqrt(n) in a sequence of length n 16 17 ## Techniques 18 19 - [double_counting] 20 21 ## Specific problems/objects 22 23 - [universal_tree] https://games-automata-play.github.io/blog/universal_trees/ 24 - [sparse_rulers] 25 - [golomb_ruler] / [sidon_set] 26 - sequences without [arithmetic_progression]s 27 - [salem_spencer_set] 28 - [angel_problem] 29 - [german_tank_problem] 30 - frequentist interpretation vs bayesian interpretatino 31 - [superpermutation] 32 - [social_golfer_problem] 33 - [menage_problem] 34 - [oberwolfach_problem] 35 36 Up: [mathematics] 37 38 See also: [discrete_mathematics]