Hulls of projective Reed-Muller codes

초록

Projective Reed-Muller codes are constructed from the family of projective hypersurfaces of a fixed degree over a finite field Fq${\mathbb{F}}_q$. We consider the relationship between projective Reed-Muller codes and their duals. We determine when these codes are self-dual, when they are self-orthogonal, and when they are LCD. We then show that when q is sufficiently large, the dimension of the hull of a projective Reed-Muller code is 1 less than the dimension of the code. We determine the dimension of the hull for a wider range of parameters and describe how this leads to a new proof of a recent result of Ruano and San-Jos & eacute;.

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