Grid classes and partial well order

Ordering by Divisibility in Abstract Algebras

Graham Higman · Proceedings of the London Mathematical Society · 1952 · 1.1K citations

Order Theory, Abstract Algebras, Abstract Algebra +2

Graph Minors. XX. Wagner's conjecture

Neil Robertson, Paul Seymour · Journal of Combinatorial Theory Series B · 2004 · 796 citations

Graph Minor, Graph Theory, Structural Graph Theory +2

Well-quasi-ordering, the Tree Theorem, and Vazsonyi’s conjecture

Joseph B. Kruskal · Transactions of the American Mathematical Society · 1960 · 454 citations · Full text

Excluded permutation matrices and the Stanley–Wilf conjecture

Adam W. Marcus, Gábor Tardos · Journal of Combinatorial Theory Series A · 2004 · 392 citations

Permutation Matrices, Algebraic Combinatorics, Matrix Theory +1

Simple permutations and pattern restricted permutations

Michael Albert, M. D. Atkinson · Discrete Mathematics · 2005 · 167 citations

Combinatorics On Word, Enumerative Combinatorics, Discrete Mathematics +3