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Erschienen in: Designs, Codes and Cryptography 9/2018

23.10.2017

On critical exponents of Dowling matroids

verfasst von: Yoshitaka Koga, Tatsuya Maruta, Keisuke Shiromoto

Erschienen in: Designs, Codes and Cryptography | Ausgabe 9/2018

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Abstract

The critical problem in matroid theory is the problem to determine the critical exponent of a given representable matroid over a finite field. In this paper, we study the critical exponents of a class of representable matroids over finite fields, called Dowling matroids. Then the critical problem for a Dowling matroid is corresponding to the classical problem in coding theory to determine the maximum dimension k such that there exists an \([n,k,d]_q\) code for given nd and q. We give a necessary and sufficient condition on the critical exponents of Dowling matroids by using a coding theoretical approach.
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Metadaten
Titel
On critical exponents of Dowling matroids
verfasst von
Yoshitaka Koga
Tatsuya Maruta
Keisuke Shiromoto
Publikationsdatum
23.10.2017
Verlag
Springer US
Erschienen in
Designs, Codes and Cryptography / Ausgabe 9/2018
Print ISSN: 0925-1022
Elektronische ISSN: 1573-7586
DOI
https://doi.org/10.1007/s10623-017-0431-8

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