منابع مشابه
Multiples of Primitive Polynomials and Their Products over GF(2)
A standard model of nonlinear combiner generator for stream cipher system combines the outputs of several independent Linear Feedback Shift Register (LFSR) sequences using a nonlinear Boolean function to produce the key stream. Given such a model, cryptanalytic attacks have been proposed by finding out the sparse multiples of the connection polynomials corresponding to the LFSRs. In this direct...
متن کاملMultiples of Subvarieties in Algebraic Groups over Finite Fields
Let X be a subvariety of a commutative algebraic group G over Fq such that X generates G. Then ⋃ φ∈EndG φ(X(Fq)) = G(Fq). If G is semiabelian, this can be strengthened to ⋃ n≥1 nX(Fq) = G(Fq), and there is a density-1 set of primes S such that X(Fq) projects surjectively onto the S-primary part of G(Fq). These results build on work of Bogomolov and Tschinkel. 1. Statements of results This intro...
متن کاملMultiples épulis
Pan African Medical Journal. 2016; 25:15 doi:10.11604/pamj.2016.25.15.10626 This article is available online at: http://www.panafrican-med-journal.com/content/article/25/15/full/ © Hakima Elmahi et al. The Pan African Medical Journal ISSN 1937-8688. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0)...
متن کاملMultiples and Divisors
Before discussing multiplication, let us speak about addition. The number A(k) of distinct sums i+ j ≤ k such that 1 ≤ i ≤ k/2, 1 ≤ j ≤ k/2 is clearly 2 bk/2c − 1. Hence the number A(2n) of distinct elements in the n × n addition table involving {1, 2, . . . , n} satisfies limn→∞A(2n)/n = 2, as expected. We turn to multiplication. Let M(k) be the number of distinct products ij ≤ k such that 1 ≤...
متن کاملInformation Distance in Multiples
Information distance is a parameter-free similarity measure based on compression, used in pattern recognition, data mining, phylogeny, clustering, and classification. The notion of information distance is extended from pairs to multiples (finite lists). We study maximal overlap, metricity, universality, minimal overlap, additivity, and normalized information distance in multiples. We use the th...
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ژورنال
عنوان ژورنال: ACM Transactions on Computer-Human Interaction
سال: 2020
ISSN: 1073-0516,1557-7325
DOI: 10.1145/3397178