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Generalized Index Coding Problem and Discrete Polymatroids [PDF]

open access: yesEntropy, 2020
The connections between index coding and matroid theory have been well studied in the recent past. Index coding solutions were first connected to multi linear representation of matroids.
Anoop Thomas, Balaji Sundar Rajan
doaj   +2 more sources

Binary matroids and local complementation [PDF]

open access: yesEuropean Journal of Combinatorics, 2014
We introduce a binary matroid M(IAS(G)) associated with a looped simple graph G. M(IAS(G)) classifies G up to local equivalence, and determines the delta-matroid and isotropic system associated with G.
Traldi, Lorenzo
core   +3 more sources

Powerful sets: a generalisation of binary matroids

open access: yesThe Electronic Journal of Combinatorics, 2017
A set $S\subseteq\{0,1\}^E$ of binary vectors, with positions indexed by $E$, is said to be a \textit{powerful code} if, for all $X\subseteq E$, the number of vectors in $S$ that are zero in the positions indexed by $X$ is a power of 2.
Farr, Graham E., Wang, Andrew Y. Z.
core   +3 more sources

On n-connected minors of the es-splitting binary matroids

open access: yesElectronic Journal of Graph Theory and Applications, 2021
The es-splitting operation on an n-connected binary matroid may not yield an n-connected matroid for (n ≥ 3). In this paper, we show that given an n-connected binary matroid M of rank r, the resulting es-splitting binary matroid has an n-connected minor ...
Prashant Pralhad Malavadkar   +2 more
doaj   +1 more source

Connections between Linear Complementary Dual Codes, Permanents and Geometry

open access: yesMathematics, 2023
Linear codes with complementary duals, or LCD codes, have recently been applied to side-channel and fault injection attack-resistant cryptographic countermeasures.
Adel N. Alahmadi   +5 more
doaj   +1 more source

On n-connected splitting matroids

open access: yesAKCE International Journal of Graphs and Combinatorics, 2019
In general, the splitting operation on a binary matroid M does not preserve the connectivity of M. In this paper, we provide sufficient conditions to preserve n-connectedness of a binary matroid under splitting operation.
Y.M. Borse, Ganesh Mundhe
doaj   +2 more sources

Templates for Binary Matroids [PDF]

open access: yesSIAM Journal on Discrete Mathematics, 2017
A binary frame template is a device for creating binary matroids from graphic or cographic matroids. Such matroids are said to conform or coconform to the template. We introduce a preorder on these templates and determine the nontrivial templates that are minimal with respect to this order.
Grace, Kevin, Van Zwam, Stefan H.M.
openaire   +5 more sources

Cyclic flats of binary matroids

open access: yesAdvances in Applied Mathematics, 2021
In this paper, first steps are taken towards characterising lattices of cyclic flats $\mathcal{Z}(M)$ that belong to matroids $M$ that can be represented over a prescribed finite field $\mathbb{F}_q$. Two natural maps from $\mathcal{Z}(M)$ to the lattice of cyclic flats of a minor of $M$ are given. Binary matroids are characterised via their lattice of
Grezet, Matthias   +4 more
openaire   +4 more sources

On the cogirth of binary matroids

open access: yesAdvances in Applied Mathematics, 2023
8 ...
Crenshaw, Cameron, Oxley, James
openaire   +2 more sources

The moduli space of matroids [PDF]

open access: yes, 2018
In the first part of the paper, we clarify the connections between several algebraic objects appearing in matroid theory: both partial fields and hyperfields are fuzzy rings, fuzzy rings are tracts, and these relations are compatible with the respective ...
Baker, Matthew, Lorscheid, Oliver
core   +2 more sources

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