148 citations
- Agence Parisienne du ClimatFR3 papers
- Brown UniversityUS3 papers
- California Institute of TechnologyUS3 papers
- Canadian Institute for Theoretical AstrophysicsCA3 papers
- Cardiff UniversityGB3 papers
- Istituto di Radioastronomia di BolognaIT3 papers
- Jet Propulsion LaboratoryUS3 papers
- Laboratoire AstroParticule et CosmologieFR3 papers
- National Institute of Astrophysics, Optics and ElectronicsMX3 papers
- University of British ColumbiaCA3 papers
- University of PennsylvaniaUS3 papers
- University of Puerto Rico at Río PiedrasPR3 papers
4 papers · 1 filter
Eulerian quasisymmetric functions and cyclic sieving
Bruce Sagan, John Shareshian, Michelle L. Wachs
It is shown that a refined version of a q-analogue of the Eulerian numbers together with the action, by conjugation, of the subgroup of the symmetric group generated by the $…
On Sequentially Cohen-Macaulay Complexes and Posets
Anders Björner, Michelle Wachs, Volkmar Welker
The classes of sequentially Cohen-Macaulay and sequentially homotopy Cohen-Macaulay complexes and posets are studied. First, some different versions of the definitions are discusse…
Torsion in the Matching Complex and Chessboard Complex
John Shareshian, Michelle L. Wachs
Topological properties of the matching complex were first studied by Bouc in connection with Quillen complexes, and topological properties of the chessboard complex were first stud…
Order ideals in weak subposets of Young's lattice and associated unimodality conjectures
Luc Lapointe, Jennifer Morse
The k-Young lattice Y^k is a weak subposet of the Young lattice containing partitions whose first part is bounded by an integer k>0. The Y^k poset was introduced in connection with…