Papers
- The Heawood family is not the complete list of excluded minors for Colin de Verdière invariant at most 5
- The Heawood family is not the complete list of excluded minors for 4-flat graphs
- No post-Lie algebra structures on pairs of perfect and nilpotent Lie algebras
- Combinatorial periods of asymmetric billiard trajectories in the regular pentagon
- KPP fronts in the 1-1-1 ABC flow speed up linearly in every direction
- A four-dimensional 4-reptile simplex
- A lattice parallelepiped with no unimodular triangulation
- Competitive equilibrium can fail near equal budgets for three additive agents
- A quadratic lower bound for intervals in the Hales–Jewett theorem
- Connected quandles that refute Hayashi's conjecture
- Cyclic sieving for q-Kreweras numbers in the exceptional types
- The Harborth constant of Cp ⊕ Cp for every prime p ≥ 11
- Counterexamples to the conjectured characterization of Hamiltonian degree sequences in digraphs
- A counterexample to the very sparse greedy conjecture for random hitting sets
- Graceful 4-coloring of planar graphs is NP-complete
- Symmetry of hook+column coefficients in iterated plethysms
- A subdivided 6-clique breaks a conjectured sum bound for independent monophonic-position colorings
- A proof of Geneson's continuous gluing conjecture
- Faithful local dynamics on every finite acyclic graph
- A graph whose zero-forcing polynomial is not unimodal
- The queueing polynomial is convex
- No holeless tetrad of four congruent pentagons
- Counts of maximal matchings in a graph need not be log-concave
- A conjecture of Hopkins on golden Rado numbers
- A counterexample on two kinds of positive dependence
- A base-r simplex that is not Ehrhart positive
- A counterexample to two questions on acyclic polynomial roots
- A Steiner triple system with a broken chromatic spectrum
- A classification of solvable spinning-switches puzzles
- A counterexample to the cocircuit diameter conjecture
- The Turán density of the tight five-cycle
- A counterexample to the E-derivation part of the LNED conjecture
- Relations among cycle invariants of a three-armed quiver
- Arbitrarily long avoidance of 3 in Euclid–Mullin sequences
- The weak parking-space conjecture
- Symmetric chains in noncrossing partition lattices
- A counterexample to a lit-only sigma-game conjecture
- Greedy play can require more colors in the coloring game
- Strongly cospectral sets in seven-dimensional cubelike graphs
- The strong Lefschetz property for complex reflection coinvariants
- Nonexistence of Williamson matrices of order 65
- The Thomson problem for N = 10
- A conjecture of Elgin, Reading and Stella on rank-two scattering coefficients
- A generalized pseudostandard prefix with no string attractor of size four
- Fathi's consecutive-integers bound does not extend to multitwists
- A monotone counterexample to a question on distributional complexity
- Locked tromino tilings of rectangles
- Existence of locally toroidal regular 4-polytopes
- Sharp linear bounds for the EKG sequence
- A counterexample to Stanley's conjecture on Smith forms of Jucys–Murphy elements
- Smith normal form of the n-cycle class sum
- The three-color Ramsey number of the 10-vertex path
- Nonexistence of (243,121,60) difference sets in C3 × C9 × C9
- The convex uniform 5-polytopes: a computer-assisted classification
- A planar graph without four- or nine-cycles that is not three-colorable
- The second-order asymptotic of the EKG sequence
- The seventh ternary density Hales–Jewett number