Geodesic
Probabilistic characteristics of weight spectra of random linear subcodes over~$\mathrm{GF}(p)$
Prikladnaya Diskretnaya Matematika. Supplement, no. 7 (2014), pp. 118-121

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For a random uniform subcode of fixed linear code over the finite field $F_p$, its weight spectrum is considered. Formulas for the first two moments of the weight spectrum elements and estimates for the minimal weight distribution of nonzero subcode elements are derived in terms of weight spectrum of the code. Formulas for the first two moments and the weight distribution of sum of two independent random vectors having fixed weights are also given.
Keywords: linear codes, random subcodes, weight spectrum, word of minimal weight. 
@article{PDMA_2014_7_a50,
     author = {A. M. Zubkov and V. I. Kruglov},
     title = {Probabilistic characteristics of weight spectra of random linear subcodes over~$\mathrm{GF}(p)$},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {118--121},
     publisher = {mathdoc},
     number = {7},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2014_7_a50/}
}
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A. M. Zubkov; V. I. Kruglov. Probabilistic characteristics of weight spectra of random linear subcodes over~$\mathrm{GF}(p)$. Prikladnaya Diskretnaya Matematika. Supplement, no. 7 (2014), pp. 118-121. http://geodesic.mathdoc.fr/item/PDMA_2014_7_a50/