DOAJ Open Access 2009

Combinatorics of Positroids

Suho Oh

Lihat Sumber DOI

Abstrak

Recently Postnikov gave a combinatorial description of the cells in a totally-nonnegative Grassmannian. These cells correspond to a special class of matroids called positroids. There are many interesting combinatorial objects associated to a positroid. We introduce some recent results, including the generalization and proof of the purity conjecture by Leclerc and Zelevinsky on weakly separated sets.

Topik & Kata Kunci

Mathematics

Penulis (1)

Suho Oh

Format Sitasi

APA MLA BibTeX

Oh, S. (2009). Combinatorics of Positroids. https://doi.org/10.46298/dmtcs.2697

Akses Cepat

Lihat di Sumber doi.org/10.46298/dmtcs.2697

Informasi Jurnal

Tahun Terbit: 2009
Sumber Database: DOAJ
DOI: 10.46298/dmtcs.2697
Akses: Open Access ✓