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Projective Reed Muller codes revisited

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Authors : Ghorpade, Sudhir (Author of the conference)
CIRM (Publisher )

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Abstract : Projective Reed Muller Codes constitute an interesting class of linear codes, which was introduced by Gilles Lachaud in 1988. Questions about their minimum distance are intimately related to the question about the maximum possible number of F-rational points in the m-dimensional projective space on a hypersurface of degree d in m+1 variables with coefficients in a finite field F. Michael Tsfasman gave a conjectural formula for this maximum possible number of points on such hypersurfaces, and the conjecture was soon proved in the affirmative by Jean-Pierre Serre. In all these works, it is generally assumed that the degree d is at most q, where q is the number of elements in F. Anders Sørensen considered in 1991 more general projective Reed Muller codes where d can be larger than q. From a coding theoretical perspective, it is more natural to consider this larger class. Sørensen proposed a formula for the minimum distance in the general case, and also studied the duals of the projective Reed-Muller codes.
We shall revisit the work of Sorensen by pointing out some minor inaccuracies in his proof of the minimum distance. We then propose an alternative proof. Further, we address the question of obtaining a characterization of the minimum weight codewords of projective Reed Muller codes.
This is a joint work with Rati Ludhani.

Keywords : linear codes; Reed-Muller codes; minimum distance

MSC Codes :
14G15 - Finite ground fields
94B05 - Linear codes, general

Additional resources :
https://www.cirm-math.fr/RepOrga/2804/Slides/ALCOCRYPT-Ghorpade-2023.pdf

    Information on the Video

    Film maker : Hennenfent, Guillaume
    Language : English
    Available date : 08/03/2023
    Conference Date : 23/02/2023
    Subseries : Research talks
    arXiv category : Information Theory ; Algebraic Geometry
    Mathematical Area(s) : Algebra ; Combinatorics
    Format : MP4 (.mp4) - HD
    Video Time : 00:34:34
    Targeted Audience : Researchers ; Graduate Students ; Doctoral Students, Post-Doctoral Students
    Download : https://videos.cirm-math.fr/2023-02-23_Ghorpade.mp4

Information on the Event

Event Title : ALCOCRYPT
Event Organizers : Bonnecaze, Alexis ; Mesnager, Sihem ; Solé, Patrick
Dates : 20/02/2023 - 24/02/2023
Event Year : 2023
Event URL : https://conferences.cirm-math.fr/2804.html

Citation Data

DOI : 10.24350/CIRM.V.20006003
Cite this video as: Ghorpade, Sudhir (2023). Projective Reed Muller codes revisited. CIRM. Audiovisual resource. doi:10.24350/CIRM.V.20006003
URI : http://dx.doi.org/10.24350/CIRM.V.20006003

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