Results 21 to 30 of about 3,023,466 (332)

Minimum survivable graphs with bounded distance increase [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2003
We study in graphs properties related to fault-tolerance in case a node fails. A graph G is k-self-repairing, where k is a non-negative integer, if after the removal of any vertex no distance in the surviving graph increases by more than k. In the
Selma Djelloul, Mekkia Kouider
doaj   +2 more sources

The [72,36] Type 11 Self Dual Codes from Hadamard Matrices

open access: yesDavao Research Journal, 2001
Consider a code [n,k,d] of length n, dimension k and of minimum distance d. Let R be a rate defined by the equation R = k/n. Mathematically, the main problem of coding theory is to find codes with large R (for efficiency) and large d (to correct many ...
Rowena Baylon-Cabrizos
doaj   +1 more source

Group codes over symmetric groups

open access: yesAIMS Mathematics, 2023
Let $ \Bbb F_{q} $ be a finite field of characteristic $ q $ and $ S_n $ a symmetric group of order $ n! $. In this paper, group codes in the symmetric group algebras $ \Bbb F_{q}S_n $ with $ q > 3 $ and $ n = 3, 4 $ are proposed.
Yanyan Gao , Yangjiang Wei
doaj   +1 more source

Dihedral Codes with Prescribed Minimum Distance [PDF]

open access: yes, 2021
Dihedral codes, particular cases of quasi-cyclic codes, have a nice algebraic structure which allows to store them efficiently. In this paper, we investigate it and prove some lower bounds on their dimension and minimum distance, in analogy with the theory of BCH codes. This allows us to construct dihedral codes with prescribed minimum distance. In the
Borello, Martino, Jamous, Abdelillah
openaire   +4 more sources

A moment-distance hybrid method for estimating a mixture of two symmetric densities

open access: yesModern Stochastics: Theory and Applications, 2018
In clustering of high-dimensional data a variable selection is commonly applied to obtain an accurate grouping of the samples. For two-class problems this selection may be carried out by fitting a mixture distribution to each variable.
David Källberg   +2 more
doaj   +1 more source

Generalized minimum distance functions [PDF]

open access: yesJournal of Algebraic Combinatorics, 2018
J. Algebraic Combin., to appear.
González-Sarabia, Manuel   +3 more
openaire   +2 more sources

EVALUASI KESESUAIAN TUTUPAN LAHAN MENGGUNAKAN CITRA ALOS AVNIR-2 TAHUN 2009 DENGAN PETA RTRW KABUPATEN SIDOARJO TAHUN 2007

open access: yesGeoid, 2015
Wilayah pesisir dan lautan merupakan salah satu sumber daya alam yang mempunyai sifat yang kompleks dan dinamis karena pengaruh dari dua ekosistem, yaitu ekosistem lautan dan daratan.
Latri Wartika, Teguh Hariyanto
doaj   +1 more source

Twisted Permutation Codes [PDF]

open access: yes, 2014
We introduce twisted permutation codes, which are frequency permutation arrays analogous to repetition permutation codes, namely, codes obtained from the repetition construction applied to a permutation code. In particular, we show that a lower bound for
Gillespie, Neil I.   +2 more
core   +4 more sources

Minimum distance-unbalancedness of trees [PDF]

open access: yesJournal of Mathematical Chemistry, 2021
AbstractFor a graph G, and two distinct vertices u and v of G, let $$n_{G}(u,v)$$ n G ( u , v )
Kramer, Marie, Rautenbach, Dieter
openaire   +2 more sources

Parameterized Codes over Cycles

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2013
In this paper we will compute the main parameters of the parameterized codes arising from cycles. In the case of odd cycles the corresponding codes are the evaluation codes associated to the projective torus and the results are well known. In the case of
González Sarabia Manuel   +3 more
doaj   +1 more source

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