ALGEBRAIC COMBINATORICS

Issue no. 1 Table of Contents

Editorial
On the existence of tableaux with given modular major index
Supercharacter theories of type A unipotent radicals and unipotent polytopes
Ordered set partitions and the 0-Hecke algebra
Skew Howe duality and random rectangular Young tableaux
Lower bound cluster algebras: presentations, Cohen–Macaulayness, and normality
Triangulations of root polytopes
Hilbert series for twisted commutative algebras

Issue no. 2 Table of Contents

Permutrees
A Demazure crystal construction for Schubert polynomials
Symmetry in Turán sums of squares polynomials from flag algebras
A property of the Birkhoff polytope
Minimal free resolutions of lattice ideals of digraphs

Issue no. 3 Table of Contents

Equivariant quantum cohomology of the Grassmannian via the rim hook rule
Critical classes, Kronecker products of spin characters, and the Saxl conjecture
Chomp on numerical semigroups
Subword complexes via triangulations of root polytopes

Issue no. 4 Table of Contents

Schubert polynomials, 132-patterns, and Stanley’s conjecture
Radicals of S n -invariant positive semidefinite hermitian forms
Dual filtered graphs
Towards a function field version of Freiman’s Theorem
On the definition of Heisenberg category
Towards a uniform subword complex description of acyclic finite type cluster algebras

Issue no. 5 Table of Contents

Loop-augmented Forests and a Variant of Foulkes’s Conjecture
Universal Tutte characters via combinatorial coalgebras
Noncommutative Bell polynomials and the dual immaculate basis
Stanley–Reisner rings of simplicial complexes with a free action by an abelian group
A new approach to the excess problem of Hadamard matrices