The numbers game and Dynkin diagram classification results
The numbers game, geometric representations of Coxeter groups, and Dynkin diagram classification results
The obstructions for toroidal graphs with no $K_{3,3}$'s
The Occurrence-in-subtuple problem
The octahedron recurrence and gl(n) crystals
The octahedron recurrence and RSK-correspondence
The On-Line Encyclopedia of Integer Sequences
The operator formula for monotone triangles - simplified proof and three generalizations
The Orchard crossing number of an abstract graph
The Orchard Morphism
The Orchard relation of a generic symmetric or antisymmetric function
The Order Dimension of the Poset of Regions in a Hyperplane Arrangement
The order of monochromatic subgraphs with a given minimum degree
The Order of the Giant Component of Random Hypergraphs
The order of the largest complete minor in a random graph
The p-modular Descent Algebra of the Symmetric Group
The Parallel-Sequential Duality : Matrices and Graphs
The partial-fractions method for counting solutions to integral linear systems
The partition dimension of corona product graphs
The peak algebra and the descent algebras of types B and D