Results 41 to 50 of about 20,001 (120)

Worpitzky-compatible sets and the freeness of arrangements between Shi and Catalan

open access: yesANNALI SCUOLA NORMALE SUPERIORE - CLASSE DI SCIENZE
19 ...
Abe, Takuro, Tran, Tan Nhat
openaire   +2 more sources

Homogenized Graphical Shi Arrangements and Deformed Dumont Permutations

open access: yes
We introduce the homogenized graphical Shi arrangement associated with a simple undirected graph $G$, which serves as a broad generalization of classical deformations of the braid arrangement, including the Shi and homogenized Linial arrangements studied by Lazar and Wachs.
Poddar, Sauvik   +2 more
openaire   +2 more sources

A basis construction for the Shi arrangement of the type $B_{\ell}$ or $C_{\ell}$

open access: yes, 2012
The Shi arrangement is an affine arrangement of hyperplanes consisting of the hyperplanes of the Weyl arrangement and their parallel translations. It was introduced by J.-Y. Shi in the study of the Kazhdan-Lusztig representation of the affine Weyl groups. M. Yoshinaga showed that the cone over every Shi arrangement is free.
openaire   +2 more sources

Characteristic quasi-polynomials of deletions of Shi arrangements of type C and type D

open access: yes
27pages.
Higashitani, Akihiro   +3 more
openaire   +2 more sources

On the extended Shi arrangement of type $B_{\ell}$

open access: yes
Motivated by Kawanoue's construction of a basis for the derivation module of the cone of the extended Catalan arrangement of type $B_\ell$, we construct an explicit basis for the derivation module of $\mathbf{c}Shi(B_\ell,m)$. Our construction generalizes the previously known case $m=1$ to $m\geq1$.
openaire   +2 more sources

Home - About - Disclaimer - Privacy