Automata, Formal Language and Computation Theory
自动机、形式语言和计算理论
基本信息
- 批准号:10044098
- 负责人:
- 金额:$ 2.56万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (B).
- 财政年份:1998
- 资助国家:日本
- 起止时间:1998 至 1999
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
A deterministic automaton A =(A,X) is said to be directable if there exists a word μ∈ XィイD1*ィエD1 such that |AuィイD1AィエD1| = 1.In this case, the notion of directability can be uniquely defined. On the other hand, the directability of nondeterministic automata can be difined in several nonequivalent ways. We provide the following three notions of directability.A word u ∈ XィイD1*ィエD1 over X is said to be :(1) a D1 -directing word of a D1 -directable automation A if (∃c ∈ A) (∀a ∈A) (auィイD1AィエD1 ={c}),(2) a D2 directing word of a D2 -directable automaton A if (∀a, b∈ A) (auィイD1AィエD1 = buィイD1AィエD1),(3) a D3-directing word of a D3 -directable automaton A if (∃c ∈ A) (∀a∈A) (c∈ auィイD1AィエD1).By DィイD2iィエD2(A) we denote the set of all Di-directing word of A. Notice that the above three notions are equivalent for deterministic automata, I.e.DィイD21ィエD2(A) = DィイD23ィエD2(A). In this case, we denote these languages as D(A), we define the following classes of languages : ∠ィイD2DィエD2 = {D(A)|A : a determin … More istic directable automation}, ∠ィイD2nd(i)ィエD2 ={Di(A) | A : a nondeterministic Di-directable automaton } ∠ィイD2cnd(i)ィエD2 ={Di(A) | A : a complete nondeterministic Di-directable automaton }(I= 1,2,3).Then each of the above classes of languages becomes a subclass of regular languages, More exactly, these classes constitute a lower lattice under inclusion relation, Now we consider the class of all nondeterministic commutative automata. By ∠ィイD2DィエD2, ∠ィイD2nd(I)ィエD2, ∠ィイD2cnd(I)ィエD2, we denote corresponding classes of commutative languages, then these classes constitute a linear ordered set, For the class of deterministic directable automata A = (A, X) with |A| = n, the following Cerny's conjecture is well-known :Let A = (A,X) be a deterministic directable automation with |A| = n.By P(A), we denote the number min {|u| | |AuィイD1AィエD1| = 1}. let d(n) = max{p(A) | A : a deterministic directable automaton with |A| =n}. Then d(n) = (n - 1)ィイD12ィエD1.We have dealt with corresponding problems for the class of nondeterministic directable automata.The above research has been done mainly with B. Irma. Moreover, during the research term, the research related so shuffle operations on posets and languages has been done with M.Katsura and Z.Esik. The research related to the set of all primitive words has been also done with M.Katsura and P.Domosi. Less
一个确定性自动机A =(A,X)被称为是有向的,如果存在一个字μ∈ X D1* D1,使得|Au金属氧化物D1| = 1.在这种情况下,定向性的概念可以被唯一地定义。另一方面,不确定自动机的可定向性可以用几种不同的方法来定义。我们提供了以下三个可定向性的概念。在X上的一个词u ∈ X D1* D1被称为:(1)一个D1 -定向自动机A的D1 -定向字,如果(c ∈ A)(a ∈A)(Au n = D1 A n = D1 ={c}),(2)一个D2有向自动机A的D2有向字,如果(n a,B∈ A)(Au金属D1 A金属D1 =金属D1 A金属D1),(3)D3 -有向自动机A的D3-有向字,如果(n c ∈ A)(n a∈A)(c∈ Au n n D 1 A n n D 1),用D n n n D 2 i n n D 2(A)表示A的所有有向字的集合。注意,上述三个概念对于确定性自动机是等价的,即D D21 D2(A)= D D23 D2(A)。在这种情况下,我们将这些语言表示为D(A),我们定义了以下几类语言:|A:确定 ...更多信息 有向自动机},则D2 ={Di(A)|A:一个非确定的Di-有向自动机} Di(i)Di(A)|答:一个完全的非确定的双向自动机}(I= 1,2,3),则上述每一类语言都成为正则语言的一个子类,更确切地说,这些类在包含关系下构成一个下格。本文用D_(2D)D_(2nd)D_(2nd)D_(2nd),D_(2nd)C_(2nd)D_(2nd),D_(2nd)C_(2nd)C_(2nd)D_(2nd)表示相应的交换语言类,则这些类构成一个线性序集。对于确定有向自动机类A =(A,X),|一|= n,下面的切尔尼猜想是众所周知的:设A =(A,X)是一个确定的有向自动机,|一|通过P(A),我们表示数min {|u|||Au金属氧化物D1| = 1}。设d(n)= max{p(A)|A:一个确定性的有向自动机,|一|=n}。则d(n)=(n - 1)D 12 D 1.本文主要研究了非确定有向自动机类的相应问题,以上研究主要是以B为例进行的.厄玛此外,在本研究期间,M. Kattero和Z. Esik对偏序集和语言上的so shuffle操作进行了研究。与所有原始词的集合相关的研究也已经由M. Kateland和P. Domosi完成。少
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Zoptin Esik,Masami Ito and Masashi Ketsura: "The eguational theory of reuersal"Algebyaic Enginecying (editel by C. Nehaniz & M. Ito Wosld Scientificl). 502-521 (1999)
Zoptin Esik、Masami Ito 和 Masashi Ketsura:“Reuersal 的均衡理论”Algebyaic Enginecying(C. Nehaniz 编辑)
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Christopher Nahanivanil Masami Ito: "Algebraic Engineering(編著)"World Scientific,Singapere. (1999)
Christopher Nahanivanil Masami Ito:“代数工程”世界科学,新加坡(1999)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
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M.Ito.: "Shuffle products and related operations on languages" Algebratc Engineering(World Scientific). 409-418 (1999)
M.Ito.:“语言上的随机乘积和相关运算”代数工程(世界科学)。
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- 发表时间:
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- 影响因子:0
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Z.Esik: "Group axioms for iteration" Information and Computation. 148. 131-180 (1999)
Z.Esik:“迭代的组公理”信息和计算。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
M.Ito: "Shuffle products and related operations on languages"Algebraic Engineering (edited by C.Nehaniv and M.Ito) (World Scientific, Singapore)]. 484-493 (1999)
M.Ito:“语言上的随机乘积和相关运算”代数工程(由 C.Nehaniv 和 M.Ito 编辑)(世界科学公司,新加坡)]。
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- 影响因子:0
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KATSURA Masashi其他文献
KATSURA Masashi的其他文献
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{{ truncateString('KATSURA Masashi', 18)}}的其他基金
Study on incretin-mediated glucagon secretion in the onset and development of diabetes mellitus
肠促胰素介导的胰高血糖素分泌在糖尿病发生发展中的研究
- 批准号:
25460113 - 财政年份:2013
- 资助金额:
$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Search of new therapeutic agents for drug dependence and analysis of the inherited difference in patients with drug dependence.
药物依赖新治疗药物的寻找及药物依赖患者遗传差异分析。
- 批准号:
20590269 - 财政年份:2008
- 资助金额:
$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Identification of common biological markers underlying establishment of drug dependence and an attempt to develop pharmacogenomic therapy
鉴定药物依赖性建立的常见生物标志物并尝试开发药物基因组疗法
- 批准号:
18500302 - 财政年份:2006
- 资助金额:
$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Identification of common process underlying establishment of drug dependence and an attempt to develop pharmacogenomic therapy.
确定药物依赖性建立的共同过程并尝试开发药物基因组疗法。
- 批准号:
16590212 - 财政年份:2004
- 资助金额:
$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Functional alteration in high voltage-gated calcium channels in drug dependence and elucidation of its mechanisms.
药物依赖性高压门控钙通道的功能改变及其机制的阐明。
- 批准号:
14570095 - 财政年份:2002
- 资助金额:
$ 2.56万 - 项目类别:
Grant-in-Aid for Scientific Research (C)