The poset of bipartitions
The poset of positive roots and its relatives
The poset perspective on alternating sign matrices
The Positive Bergman Complex of an Oriented Matroid
The Positivity Set of a Recurrence Sequence
The potential to improve the choice: list conflict-free coloring for geometric hypergraphs
The powers of smooth words over arbitrary 2-letter alphabets
The pre-WDVV ring of physics and its topology
The primitive derivation and freeness of multi-Coxeter arrangements
The primitives and antipode in the Hopf algebra of symmetric functions in noncommuting variables
The probability that a random multigraph is simple
The problem of Buchstaber number and its combinatorial aspects
The problem of the pawns
The product of trees in the Loday-Ronco algebra through Catalan alternative tableaux
The Profile of relations
The proof of Steinberg's three coloring conjecture
The Proportion of Weierstrass Semigroups
The Pseudo Cosine Sequences of a Distance-Regular Graph
The q-Log-convexity of the Generating Functions of the Squares of Binomial Coefficients
The q-WZ Method for Infinite Series