Skip to main contentSkip to search
Episciences
Open Access Journals
Sign in(new window)
Discrete Mathematics & Theoretical Computer Science logo
Discrete Mathematics & Theoretical Computer Science
Discrete Mathematics & Theoretical Computer Science logo
Discrete Mathematics & Theoretical Computer Science
Sign in(new window)
Articles & Issues
All articlesAll accepted articlesAll volumesLast volumeSectionsSpecial issuesAuthors
About
The journalIndexing
Boards
Publish
For authorsEthical charter
Submit
Discrete Mathematics & Theoretical Computer Science logo
Contact
|
Credits
eISSN 1365-8050
|
RSS
|
Atom
Episciences
Documentation
|
Acknowledgements
|
Publishing policy
Accessibility: non-compliant
|
Legal mentions
|
Privacy statement
|
Terms of use
  1. Home > Articles & Issues >
  2. Articles >
  3. Generalized permutoh ...
Conference paper

Generalized permutohedra, h-vectors of cotransversal matroids and pure O-sequences (extended abstract)

Suho Oh (1)
(1) Department of Mathematics [MIT]
Download article
Open on HAL
Imported on
January 31, 2017
Published on
December 31, 2010
Last modified on
March 31, 2025
Volume
DMTCS Proceedings vol. AO, 23rd International Conference on Formal Power Series and Algebraic Combinatorics (FPSAC 2011)
Proceedings
DOI
10.46298/dmtcs.2946
License
https://about.hal.science/hal-authorisation-v1
Indicators
577
Views
581
Downloads

Generalized permutohedra, h-vectors of cotransversal matroids and pure O-sequences (extended abstract)

Suho Oh (1)
(1) Department of Mathematics [MIT]
Abstract
English
Stanley has conjectured that the h-vector of a matroid complex is a pure O-sequence. We will prove this for cotransversal matroids by using generalized permutohedra. We construct a bijection between lattice points inside a $r$-dimensional convex polytope and bases of a rank $r$ transversal matroid.
French
Stanley a conjecturé que le h-vecteur d'un complexe matroïde est une pure O-séquence. Nous allons le prouver pour les matroïdes cotransversaux en utilisant generalized permutohedra. Nous construisons une bijection entre les points du réseau intérieur d'un polytope convexe $r$-dimensions et les bases d'un matroïde transversal $r$-rang.
Keywords
  • [MATH.MATH-CO]Mathematics [math]/Combinatorics [math.CO]
  • [INFO.INFO-DM]Computer Science [cs]/Discrete Mathematics [cs.DM]
  • generalized permutohedra
  • Stanley's conjecture
  • h-vector
  • matroid
  • cotransversal
  • bipartite
  • matching
  • polytope
  • pure O-sequence
Cited by

Source: OpenCitations

  • On the structure of the h -vector of a paving matroid

    European Journal of Combinatorics

    Authors : Criel Merino ORCID, Steven D. Noble ORCID, Marcelino Ramírez-Ibáñez ORCID, Rafael Villarroel-Flores ORCID

    Journal reference : Volume 33, 2012, pp. 1787-1799

    DOI : 10.1016/j.ejc.2012.04.002
Preview
Loading PDF preview...