Matroid automorphisms of the H_4 root system
C Bao, C Freidman-Gerlicz, G Gordon… - arXiv preprint arXiv …, 2010 - arxiv.org
We study the rank 4 linear matroid $ M (H_4) $ associated with the 4-dimensional root
system $ H_4 $. This root system coincides with the vertices of the 600-cell, a 4-dimensional …
system $ H_4 $. This root system coincides with the vertices of the 600-cell, a 4-dimensional …
[HTML][HTML] Automorphism groups of root system matroids
MD Sikirić, A Felikson, P Tumarkin - European journal of combinatorics, 2011 - Elsevier
Given a root system R, the vector system R̃ is obtained by taking a representative v in each
antipodal pair {v,− v}. The matroid M (R) is formed by all independent subsets of R̃. The …
antipodal pair {v,− v}. The matroid M (R) is formed by all independent subsets of R̃. The …
[PDF][PDF] MATROID AUTOMORPHISMS OF THE ROOT SYSTEM H4
C BAO, C FREIDMAN-GERLICZ, G GORDON… - webbox.lafayette.edu
We study the rank-4 linear matroid M (H4) associated with the 4-dimensional root system
H4. This root system coincides with the vertices of the 600-cell, a 4-dimensional regular …
H4. This root system coincides with the vertices of the 600-cell, a 4-dimensional regular …