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On closed classes in partial k-valued logic that contain all polynomials 关于包含所有多项式的部分k值逻辑中的闭类
IF 0.5 Q4 Mathematics Pub Date : 2021-08-01 DOI: 10.1515/dma-2021-0020
V. Alekseev
Abstract Let Polk be the set of all functions of k-valued logic representable by a polynomial modulo k, and let Int (Polk) be the family of all closed classes (with respect to superposition) in the partial k-valued logic containing Polk and consisting only of functions extendable to some function from Polk. Previously the author showed that if k is the product of two different primes, then the family Int (Polk) consists of 7 closed classes. In this paper, it is proved that if k has at least 3 different prime divisors, then the family Int (Polk) contains an infinitely decreasing (with respect to inclusion) chain of different closed classes.
摘要设Polk是可由多项式模k表示的k值逻辑的所有函数的集合,并且设Int(Polk)是包含Polk并且仅由可从Polk扩展到某个函数的函数组成的部分k值逻辑中的所有闭类(关于叠加)的族。先前作者证明,如果k是两个不同素数的乘积,那么Int(Polk)族由7个闭类组成。本文证明了如果k至少有3个不同的素数,则族Int(Polk)包含一个不同闭类的无限递减(关于包含)链。
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引用次数: 2
Collisions and incidence of vertices and components in the graph of k-fold iteration of the uniform random mapping 图中k次迭代的一致随机映射的顶点和分量的碰撞和关联
IF 0.5 Q4 Mathematics Pub Date : 2021-08-01 DOI: 10.1515/dma-2021-0023
V. O. Mironkin
Abstract The probabilistic characteristics of the graph of k-fold iteration of uniform random mapping are studied. Formulas for the distribution of the length of the aperiodicity segment of an arbitrary vertex with some restrictions are calculated. We obtain exact expressions for the probabilities that two arbitrary vertices belong to the same connected component, that an arbitrary vertex belongs to the preimage set of another vertex and that there exists a collision in the considered graph.
摘要研究了均匀随机映射的k次迭代图的概率特征。在一定的限制条件下,计算了任意顶点的非周期段长度的分布公式。我们得到了两个任意顶点属于同一连通分量的概率、任意顶点属于另一个顶点的原像集的概率以及图中存在碰撞的概率的精确表达式。
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引用次数: 0
Alphabetic points in compositions and words 作文和单词中的字母点
IF 0.5 Q4 Mathematics Pub Date : 2021-08-01 DOI: 10.1515/dma-2021-0021
M. Archibald, A. Blecher, A. Knopfmacher
Abstract We use generating functions to account for alphabetic points (or the lack thereof) in compositions and words. An alphabetic point is a value j such that all the values to its left are not larger than j and all the values to its right are not smaller than j. We also provide the asymptotics for compositions and words which have no alphabetic points, as the size tends to infinity. This is achieved by the construction of upper and lower bounds which converge to each other, and in the latter case by probabilistic arguments.
我们使用生成函数来解释作文和单词中的字母点(或缺少字母点)。字母点是一个值j,使得它左边的所有值都不大于j,它右边的所有值都不小于j。我们还提供了没有字母点的组合和单词的渐近性,因为大小趋于无穷大。这是通过构造彼此收敛的上界和下界来实现的,在后一种情况下通过概率论证来实现。
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引用次数: 3
Medial strongly dependent n-ary operations 中间强依赖的n元运算
IF 0.5 Q4 Mathematics Pub Date : 2021-08-01 DOI: 10.1515/dma-2021-0022
A. V. Cheremushkin
Abstract We prove an analogue of Toyoda–Belousov theorem on the structure of medial n-quasigroups for the case of strongly dependent n-ary operations.
摘要在强相关n元操作的情况下,证明了关于中间n-拟群结构的一个类似的Toyoda-Belousov定理。
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引用次数: 0
Local limit theorems for generalized scheme of allocation of particles into ordered cells 广义粒子有序单元分配方案的局部极限定理
IF 0.5 Q4 Mathematics Pub Date : 2021-08-01 DOI: 10.1515/dma-2021-0026
A. N. Timashev
Abstract A generalized scheme of allocation of n particles into ordered cells (components). Some statements containing sufficient conditions for the weak convergence of the number of components with given cardinality and of the total number of components to the negative binomial distribution as n → ∞ are presented as hypotheses. Examples supporting the validity of these statements in particular cases are considered. For some examples we prove local limit theorems for the total number of components which partially generalize known results on the convergence of this distribution to the normal law.
摘要一种将n个粒子分配到有序单元(组件)中的广义方案。一些含有给定基数的分量数和分量总数弱收敛于负二项分布的充分条件的语句为n→ ∞ 作为假设提出。考虑了在特定情况下支持这些陈述有效性的例子。对于一些例子,我们证明了分量总数的局部极限定理,这些定理部分地推广了关于该分布收敛到正态律的已知结果。
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引用次数: 0
Frontmatter Frontmatter
IF 0.5 Q4 Mathematics Pub Date : 2021-08-01 DOI: 10.1515/dma-2021-frontmatter4
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引用次数: 0
Implementation complexity of Boolean functions with a small number of ones 具有少量1的布尔函数的实现复杂性
IF 0.5 Q4 Mathematics Pub Date : 2021-08-01 DOI: 10.1515/dma-2021-0024
N. P. Redkin
Abstract We consider the class Fn, k consisting of n-ary Boolean functions that take the value one on exactly k input tuples. For small values of k the class Fn, k is splitted into subclasses, and for every subclass we find the asymptotics of the Shannon function of circuit implementation in the basis {x&y,x‾} $ {x&y,overline x} $ (or in the basis {x∨y,x‾}) $ {xvee y,overline x}) $ ; the weights of the basic gates are arbitrary strictly positive numbers.
摘要我们考虑由n元布尔函数组成的类Fn,k,该函数在恰好k个输入元组上取值1。对于k的小值,类Fn,k被划分为子类,并且对于每个子类,我们在基{x&y,x‾}${x&y,overline x}$(或在基{x⁄y,x{8254})${xvee y,overline x})$中找到电路实现的Shannon函数的渐近性;基本门的权重是任意的严格正数。
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引用次数: 0
Learning of monotone functions with single error correction 单误差校正单调函数的学习
IF 0.5 Q4 Mathematics Pub Date : 2021-06-01 DOI: 10.1515/dma-2021-0017
S. Selezneva, Yongqing Liu
Abstract Learning of monotone functions is a well-known problem. Results obtained by V. K. Korobkov and G. Hansel imply that the complexity φM(n) of learning of monotone Boolean functions equals Cn⌊n/2⌋ $begin{array}{} displaystyle C_n^{lfloor n/2rfloor} end{array}$ + Cn⌊n/2⌋+1 $begin{array}{} displaystyle C_n^{lfloor n/2rfloor+1} end{array}$ (φM(n) denotes the least number of queries on the value of an unknown monotone function on a given input sufficient to identify an arbitrary n-ary monotone function). In our paper we consider learning of monotone functions in the case when the teacher is allowed to return an incorrect response to at most one query on the value of an unknown function so that it is still possible to correctly identify the function. We show that learning complexity in case of the possibility of a single error is equal to the complexity in the situation when all responses are correct.
单调函数的抽象学习是一个众所周知的问题。V.K.Korobkov和G。Hansel暗示单调布尔函数学习的复杂度φM(n)等于Cn⌊n/2⌋$bear{array}{}displaystyle C_n^{lfloor n/2rfloor}end{array}$+Cn 8970;n/2𕯯+1$bearn{array}{}displaystyle C_n^} lfloor n/2rfoor+1}end{array}$(φM(n)表示在给定输入上对未知单调函数值的查询次数最少,足以识别任意n元单调函数)。在我们的论文中,我们考虑了单调函数的学习,当教师被允许对未知函数的值的最多一个查询返回错误的响应时,这样仍然可以正确地识别函数。我们证明,在可能出现单个错误的情况下,学习的复杂性等于在所有回答都正确的情况下的复杂性。
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引用次数: 0
Bounds on Shannon functions of lengths of contact closure tests for contact circuits 接触电路接触闭合试验长度Shannon函数的界
IF 0.5 Q4 Mathematics Pub Date : 2021-06-01 DOI: 10.1515/dma-2021-0015
K. A. Popkov
Abstract We consider the problem of synthesis of irredundant two-pole contact circuits which implement n-place Boolean functions and allow short single fault detection or diagnostic tests of closures of at most k contacts. We prove that the Shannon function of the length of a fault detection test is equal to n for any n and k, and that the Shannon function of the length of a diagnostic test is majorized by n + k(n − 2) for n ⩾ 2.
摘要我们考虑了无冗余双极接触电路的合成问题,该电路实现n位布尔函数,并允许对最多k个接触的闭合进行短的单故障检测或诊断测试。我们证明了对于任何n和k,故障检测测试长度的Shannon函数等于n,并且对于n⩾2,诊断测试长度的香农函数由n+k(n−2)决定。
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引用次数: 0
Convex algebras of probability distributions induced by finite associative rings 有限结合环诱导概率分布的凸代数
IF 0.5 Q4 Mathematics Pub Date : 2021-06-01 DOI: 10.1515/dma-2021-0019
A. Yashunsky
Abstract We consider the transformations of random variables over a finite associative ring by the addition and multiplication operations. For arbitrary finite rings, we construct families of distribution algebras, which are sets of distributions closed over sums and products of independent random variables.
摘要我们通过加法和乘法运算来考虑有限结合环上随机变量的变换。对于任意有限环,我们构造了分布代数族,它们是在独立随机变量的和和积上闭合的分布集。
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引用次数: 1
期刊
Discrete Mathematics and Applications
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