Publications (39)
Trianguloids and Triangulations of Root Polytopes
Pavel Galashin, Gleb Nenashev, Alexander Postnikov
Algebras of curvature forms on homogeneous manifolds
Alexander Postnikov, Boris Shapiro, Mikhail Shapiro
A Gelfand Model for Wreath Products
Ron M. Adin, Alexander Postnikov, Yuval Roichman
Branched polymers and hyperplane arrangements
Karola Meszaros, Alexander Postnikov
Alcoved Polytopes I
Thomas Lam, Alexander Postnikov
Affine approach to quantum Schubert calculus
Alexander Postnikov
Smoothness of Schubert varieties via patterns in root systems
Sara Billey, Alexander Postnikov
Matching polytopes, toric geometry, and the non-negative part of the Grassmannian
Alexander Postnikov, David Speyer, Lauren Williams
Deformations of Coxeter hyperplane arrangements
Alexander Postnikov, Richard P. Stanley
Mixed Bruhat operators and Yang-Baxter equations for Weyl groups
Francesco Brenti, Sergey Fomin, Alexander Postnikov
Cosmological Polytopes and the Wavefunction of the Universe
Nima Arkani-Hamed, Paolo Benincasa, Alexander Postnikov
Combinatorial Gelfand Models
Ron M. Adin, Alexander Postnikov, Yuval Roichman
Faces of Generalized Permutohedra
Alexander Postnikov, Victor Reiner, Lauren Williams
On-Shell Structures of MHV Amplitudes Beyond the Planar Limit
Nima Arkani-Hamed, Jacob L. Bourjaily, Freddy Cachazo +2
Total positivity, Grassmannians, and networks
Alexander Postnikov
Littlewood-Richardson Coefficients via Yang-Baxter Equation
Oleg Gleizer, Alexander Postnikov
Combinatorics and geometry of power ideals
Federico Ardila, Alexander Postnikov
Symmetries of Gromov-Witten invariants
Alexander Postnikov
On Characters of Weyl Groups
Ron M. Adin, Alexander Postnikov, Yuval Roichman
Bruhat order, smooth Schubert varieties, and hyperplane arrangements
Suho Oh, Alexander Postnikov, Hwanchul Yoo
Affine Weyl groups in K-theory and representation theory
Cristian Lenart, Alexander Postnikov
Schur times Schubert via the Fomin-Kirillov algebra
Karola Meszaros, Greta Panova, Alexander Postnikov
Alcoved Polytopes II
Thomas Lam, Alexander Postnikov
Generalized parking functions, descent numbers, and chain polytopes of ribbon posets
Denis Chebikin, Alexander Postnikov
Quantum Bruhat graph and Schubert polynomials
Alexander Postnikov
Root polytopes, Tutte polynomials, and a duality theorem for bipartite graphs
Tamás Kálmán, Alexander Postnikov
Permutohedra, associahedra, and beyond
Alexander Postnikov
Positive Grassmannian and polyhedral subdivisions
Alexander Postnikov
A Combinatorial Model for Crystals of Kac-Moody Algebras
Cristian Lenart, Alexander Postnikov
Chains in the Bruhat order
Alexander Postnikov, Richard P. Stanley
On the X-rays of permutations
Cecilia Bebeacua, Toufik Mansour, Alexander Postnikov +1
PP-wave string interactions from perturbative Yang-Mills theory
Neil R. Constable, Daniel Z. Freedman, Matthew Headrick +4
Scattering Amplitudes and the Positive Grassmannian
Nima Arkani-Hamed, Jacob L. Bourjaily, Freddy Cachazo +3
Arrangements of equal minors in the positive Grassmannian
Miriam Farber, Alexander Postnikov
What power of two divides a weighted Catalan number?
Alexander Postnikov, Bruce Sagan
Hecke Algebra Actions on the Coinvariant Algebra
Ron M. Adin, Alexander Postnikov, Yuval Roichman
Schur positivity and Schur log-concavity
Thomas Lam, Alexander Postnikov, Pavlo Pylyavskyy
Poset vectors and generalized permutohedra
Dorian Croitoru, SuHo Oh, Alexander Postnikov
Trees, parking functions, syzygies, and deformations of monomial ideals
Alexander Postnikov, Boris Shapiro