Title
On the Representability of the Biuniform Matroid.
Abstract
Every biuniform matroid is representable over all sufficiently large fields. But it is not known exactly over which finite fields they are representable, and the existence of efficient methods to find a representation for every given biuniform matroid has not been proved. The interest of these problems is due to their implications to secret sharing. The existence of efficient methods to find representations for all biuniform matroids is proved here for the first time. The previously known efficient constructions apply only to a particular class of biuniform matroids, while the known general constructions were not proved to be efficient. In addition, our constructions provide in many cases representations over smaller finite fields.
Year
DOI
Venue
2013
10.1137/120886960
SIAM JOURNAL ON DISCRETE MATHEMATICS
Keywords
Field
DocType
matroid theory,representable matroid,biuniform matroid,secret sharing
Matroid,Discrete mathematics,Finite field,Combinatorics,Secret sharing,Oriented matroid,Matroid partitioning,Graphic matroid,Weighted matroid,Mathematics
Journal
Volume
Issue
ISSN
27
3
0895-4801
Citations 
PageRank 
References 
1
0.35
17
Authors
4
Name
Order
Citations
PageRank
Simeon Ball113328.98
Carles Padró249032.23
Zsuzsa Weiner3509.72
Chaoping Xing4916110.47