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SOME CLASSES OF DIFFERENCE SEQUENCES OF FUZZY NUMBERS DEFINED BY A SEQUENCE OF MODULI
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作者 Ayhan Esi Mehmet Aikgz 《Acta Mathematica Scientia》 SCIE CSCD 2011年第1期229-236,共8页
In this article, we introduce and examine some properties of new difference sequence spaces of fuzzy numbers defined using a sequence of modulus functions.
关键词 fuzzy numbers paranorm difference sequences modulus function
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Weighted (<i>λ</i>, <i>μ</i>)-Ideal Statistical Convergence and Strongly Weighted (<i>λ</i>, <i>μ</i>)-Ideal Convergence of Double Sequences of Fuzzy Numbers
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作者 Xue Feng 《Applied Mathematics》 2022年第1期27-36,共10页
The paper aims to investigate different types of weighted ideal statistical convergence and strongly weighted ideal convergence of double sequences of fuzzy numbers. Relations connecting ideal statistical convergence ... The paper aims to investigate different types of weighted ideal statistical convergence and strongly weighted ideal convergence of double sequences of fuzzy numbers. Relations connecting ideal statistical convergence and strongly ideal convergence have been investigated in the environment of the newly defined classes of double sequences of fuzzy numbers. At the same time, we have examined relevant inclusion relations concerning weighted (<i>λ</i>, <i>μ</i>)-ideal statistical convergence and strongly weighted (<i>λ</i>, <i>μ</i>)-ideal convergence of double sequences of fuzzy numbers. Also, some properties of these new sequence spaces are investigated. 展开更多
关键词 fuzzy numbers Ideal Statistical Convergence Double sequences of fuzzy numbers WEIGHTED
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Strong Limit Theorems for Arbitrary Fuzzy Stochastic Sequences
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作者 费为银 《Journal of Donghua University(English Edition)》 EI CAS 2008年第5期556-560,共5页
Based on fuzzy random variables, the concept of fuzzy stochastic sequences is defined. Strong limit theorems for fuzzy stochastic sequences are established. Some known results in non-fuzzy stochastic sequences are ext... Based on fuzzy random variables, the concept of fuzzy stochastic sequences is defined. Strong limit theorems for fuzzy stochastic sequences are established. Some known results in non-fuzzy stochastic sequences are extended. In order to prove results of this paper, the notion of fuzzy martingale difference sequences is also introduced. 展开更多
关键词 fuzzy random variables fuzzy conditional expectation strong law of large numbers fuzzy stochastic sequences fuzzy martingale difference sequences
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Extensions of the Constructivist Real Number System
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作者 E. E. Escultura 《Advances in Pure Mathematics》 2018年第8期720-754,共35页
The paper reviews the most consequential defects and rectification of traditional mathematics and its foundations. While this work is only the tip of the iceberg, so to speak, it gives us a totally different picture o... The paper reviews the most consequential defects and rectification of traditional mathematics and its foundations. While this work is only the tip of the iceberg, so to speak, it gives us a totally different picture of mathematics from what we have known for a long time. This journey started with two teasers posted in SciMath in 1997: 1) The equation 1 = 0.99… does not make sense. 2) The concept ?does not exist. The first statement sparked a debate that raged over a decade. Both statements generated a series of publications that continues to grow to this day. Among the new findings are: 3) There does not exist nondenumerable set. 4) There does not exist non-measurable set. 5) Cantor’s diagonal method is flawed. 6) The real numbers are discrete and countable. 7) Formal logic does not apply to mathematics. The unfinished debate between logicism, intuitionism-constructivism and formalism is resolved. The resolution is the constructivist foundations of mathematics with a summary of all the rectification undertaken in 2015, 2016 and in this paper. The extensions of the constructivist real number system include the complex vector plane and transcendental functions. Two important results in the 2015 are noted: The solution and resolution of Hilbert’s 23 problems that includes the resolution of Fermat’s last theorem and proof Goldbach’s conjecture. 展开更多
关键词 CONSTRUCTIVISM DaRK number Fermat’s CONJECTURE g-Norm g-sequence g-limit Goldbach’s CONJECTURE TRUNCaTION Vector Operators j and
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Sequences and Limits
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作者 Wolfgang Mueckenheim 《Advances in Pure Mathematics》 2015年第2期59-61,共3页
It is widely held that irrational numbers can be represented by infinite digit-sequences. We will show that this is not possible. A digit sequence is only an abbreviated notation for an infinite sequence of rational p... It is widely held that irrational numbers can be represented by infinite digit-sequences. We will show that this is not possible. A digit sequence is only an abbreviated notation for an infinite sequence of rational partial sums. As limits of sequences, irrational numbers are incommensurable with any grid of decimal fractions. 展开更多
关键词 Series sequenceS limits DEFINaBILITY of REaL numberS SET theORY
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Gnedenko-Raikov’s Theorem Fails for Exchangeable Sequences
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作者 George Stoica Deli Li 《Applied Mathematics》 2012年第12期2019-2021,共3页
We study the connection between the central limit theorem and law of large numbers for exchangeable sequences, and provide a counterexample to the Gnedenko-Raikov theorem for such sequences.
关键词 Exchangeable sequenceS Central limit theOREM WEaK LaW of Large numberS
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There Are Infinitely Many Mersnne Composite Numbers with Prime Exponents
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作者 Fengsui Liu 《Advances in Pure Mathematics》 2018年第7期687-698,共12页
By extending both arithmetical operations into finite sets of natural numbers, from the entire set of natural numbers successively deleting some residue classes modulo a prime, we invented a recursive sieve method or ... By extending both arithmetical operations into finite sets of natural numbers, from the entire set of natural numbers successively deleting some residue classes modulo a prime, we invented a recursive sieve method or algorithm on natural numbers and their sets. The algorithm mechanically yields a sequence of sets, which converges to the set of all primes p such that 2p + 1 divides the Mersenne number Mp. The cardinal sequence corresponding to the sequence of sets is strictly increasing. So that we have captured enough usable structures, without any estimation, the existing theories of those structures allow us to prove an exact result: there are infinitely many Mersenne composite numbers with prime exponents Mp. 展开更多
关键词 Mersenne Composite numberS Sophie German PRIMES RECURSIVE algorithm Order Topology limit of sequence of Sets
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On the Space bv_p(F) of Sequences of p-bounded Variation of Fuzzy Numbers
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作者 zer TALO Feyzi BA■AR 《Acta Mathematica Sinica,English Series》 SCIE CSCD 2008年第7期1205-1212,共8页
Recently, the space bvp of real or complex numbers consisting of all sequences whose differences are in the space lp has been studied by Basar, Altay [Ukrainian Math. J. 55(1)(2003), 136-147], where 1 ≤ p ≤ ∞. ... Recently, the space bvp of real or complex numbers consisting of all sequences whose differences are in the space lp has been studied by Basar, Altay [Ukrainian Math. J. 55(1)(2003), 136-147], where 1 ≤ p ≤ ∞. The main purpose of the present paper is to introduce the space bvp(F) of sequences of p-bounded variation of fuzzy numbers. Moreover, it is proved that the space bvp(F) includes the space lp(F) and also shown that the spaces bvp(F) and lp(F) axe isomorphic for 1 ≤ p ≤∞. Furthermore, some inclusion relations have been given. 展开更多
关键词 sequence of fuzzy numbers space of difference sequences isomorphic spaces and inclusion relations
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Fuzzy AHP法在企业购并中的运用
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作者 何德权 张明善 《陕西工学院学报》 1999年第4期63-70,共8页
根据三角模糊数的概念,构造待购并企业的模糊判断矩阵,再利用FuzzyAHP法对侯选购并目标进行排序,从而为企业选择合理的目标购并对象提供一种新的评价方法。
关键词 三角模糊数 fuzzyaHP 排序 企业购并 评价指标
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Mathematica在数列极限中的应用
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作者 黎明 《曲靖师范学院学报》 2006年第3期16-19,共4页
利用Mathematica数学软件直观和强大的计算功能,来研究探索数列极限的存在性问题,并估计其近似值.
关键词 数学软件 数列极限 存在性
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基于面积和重心预测精度的IOWA算子的模糊变权组合预测模型 被引量:8
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作者 张宇菲 陈华友 《统计与决策》 CSSCI 北大核心 2018年第14期24-28,共5页
对于三角模糊数的组合预测,传统的方法是将三角模糊数的三个端点分别进行组合,但这样会导致三角模糊数三个端点的大小顺序出现混乱而影响预测信息的完整性。为此文章引入三角模糊数对应的隶属函数覆盖的面积和重心的概念,重新定义了三... 对于三角模糊数的组合预测,传统的方法是将三角模糊数的三个端点分别进行组合,但这样会导致三角模糊数三个端点的大小顺序出现混乱而影响预测信息的完整性。为此文章引入三角模糊数对应的隶属函数覆盖的面积和重心的概念,重新定义了三角模糊数的面积和重心预测精度指标,运用IOWA算子建立了相应的三角模糊数面积序列和重心序列的相关系数的多目标组合预测模型,并引入重要性参数将其转化为单目标规划模型。实例分析验证了模型的可行性和有效性,并对模型重要性参数进行了灵敏度分析。 展开更多
关键词 三角模糊数 面积序列 重心序列 IOWa算子 相关系数
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Fuzzy数序的CV指标法及改进 被引量:2
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作者 胡伟文 刘子瑞 《海军工程大学学报》 CAS 2000年第5期95-98,共4页
确定 Fuzzy数的序是一个重要的理论问题 ,有广泛的应用价值 .CV指标法基于 Fuzzy数概率分布的均值及方差对 Fuzzy数进行定序 ,但在 Fuzzy数概率分布的均值及方差的一些组合下存在失效问题 ,文中通过实例对此进行了分析 ,定义了综合 Fuzz... 确定 Fuzzy数的序是一个重要的理论问题 ,有广泛的应用价值 .CV指标法基于 Fuzzy数概率分布的均值及方差对 Fuzzy数进行定序 ,但在 Fuzzy数概率分布的均值及方差的一些组合下存在失效问题 ,文中通过实例对此进行了分析 ,定义了综合 Fuzzy数均值。 展开更多
关键词 fuzzy 数序 限位系数 CV指标法
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p-平均对称差度量的Cauchy问题(Ⅰ) 被引量:1
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作者 李法朝 苏连青 仇计清 《河北科技大学学报》 CAS 1999年第4期5-10,共6页
从集合的对称差集合的Lebesgue 测度出发,建立了衡量Fuzzy 数之间差异的p-平均对称差度量dΔp ,讨论了(E,dΔp)中的Cauchy 序列的基本性质。
关键词 fuzzy 平均对称差度量 Cauchy序列 集合 度量
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fuzzy数列收敛定义的蕴含关系研究 被引量:3
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作者 曾文艺 《北京师范大学学报(自然科学版)》 CAS CSCD 北大核心 1997年第3期301-304,共4页
详细讨论了9种fuzzy数列收敛定义间的蕴含关系,得到了一些有意义的结论,这些结果有望在fuzzy分析理论中得到应用.
关键词 模糊数距离 收敛 模糊分析理论 模糊数列
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基于模糊综合评价的水下采油树结构可靠性分析
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作者 张勐 沈亮 +1 位作者 贾鹏 王鑫 《石油矿场机械》 CAS 2024年第3期1-10,共10页
针对水下采油树结构可靠性分析,提出一种基于模糊综合评价理论的水下采油树结构可靠性分析方法。首先,通过分析不同厂家水下采油树构型,确定水下采油树的典型结构构型及组成,分析水下采油树在运行过程中所受的外载荷;其次,采用专家打分... 针对水下采油树结构可靠性分析,提出一种基于模糊综合评价理论的水下采油树结构可靠性分析方法。首先,通过分析不同厂家水下采油树构型,确定水下采油树的典型结构构型及组成,分析水下采油树在运行过程中所受的外载荷;其次,采用专家打分以及模糊综合评价法求得故障树底事件失效率,通过定量分析求解顶事件失效率、可靠度及可靠寿命曲线等可靠性指标;最后,对故障树进行重要度分析及失效率变化对系统结构可靠性的影响,结果表明:“树本体内磨损”的关键重要度最高,对系统结构可靠性的影响最大,是结构中的薄弱环节,应予以关注。研究成果可为水下采油树结构的风险评估提供技术参考,对水下采油树的设计制造提供一定的指导意义。 展开更多
关键词 水下采油树 结构可靠性 故障树 模糊综合评价 左右模糊数排序法
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基于TFAHP-理想点法的露天矿开采程序优化 被引量:1
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作者 白润才 王强 +1 位作者 刘光伟 曹博 《应用泛函分析学报》 2017年第3期330-337,共8页
露天矿开采程序优化是一个多目标决策问题,为了对开采程序进行系统科学地评价和选择,提出了一种综合运用三角模糊数层次分析法(TFAHP)和理想点法的优化方法,详述了主要思路及使用步骤.以准东露天矿为例,选取8个指标建立评价体系,通过TF... 露天矿开采程序优化是一个多目标决策问题,为了对开采程序进行系统科学地评价和选择,提出了一种综合运用三角模糊数层次分析法(TFAHP)和理想点法的优化方法,详述了主要思路及使用步骤.以准东露天矿为例,选取8个指标建立评价体系,通过TFAHP来计算各指标权重,采用理想点法对3个备选方案进行排序,最终确定了合理的开采程序.结果表明:该方法在露天矿开采程序优化中具有较强的可行性和有效性,为露天矿开采程序优化提供一种新思路. 展开更多
关键词 露天矿 三角模糊数层次分析法(TFaHP) 理想点法 指标权重 开采程序
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基于模糊综合的加权Borda数法研究 被引量:9
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作者 董晓波 《连云港化工高等专科学校学报》 2001年第4期1-4,共4页
通过引入矩阵简化了加权Borda数法的评定方法,分析了应用该法模糊综合时遇到的问题,构造了广义加权Borda数法,较好地克服了加权Borda数法的局限性,扩展了其应用范围。
关键词 模糊综合 加权Borda数法 等级间隔 等级数列 矩阵
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Fuzzy数序列的收敛问题 被引量:2
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作者 李法朝 仇计清 苏连青 《河北轻化工学院学报》 1996年第4期1-4,24,共5页
首先以R2上的距离为基础,利用Fuzzy数结构上的特征建立了Fuzzy数之间的距离,进而证明了Fuzzy序列收敛的单调有界有极限定理、夹逼定理及柯西收敛定理。
关键词 模糊数序列 收敛 柯西收敛定理 模糊数学
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Fuzzy数序列的Fuzzy运算的收敛性 被引量:1
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作者 李法朝 仇计清 苏连青 《河北轻化工学院学报》 1997年第1期5-6,14,共3页
在Fuzzy数的Fuzzy运算及Fuzzy数序列的收敛问题基础上,讨论了收敛序列的Fuzzy运算的性质,给出了几个Fuzzy数序列的Fuzzy运算的收敛定理。
关键词 模糊数 数序列 模糊运算 收敛性 模糊数学
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广义Fibonacci数列与广义黄金分割数 被引量:1
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作者 王琪 《云南师范大学学报(自然科学版)》 2018年第5期29-31,共3页
令a,b为任意固定正常数,并记δ=δ(a,b)=a+b/(a+b).考虑广义Fibonacci序列F{n}为:Fn=aF_(n-1)+bF_(n-2),n≥2,F0=F1=1.一个熟知的基本事实是:比值序列{F_n/F_(n+1)}收敛,且其极限g(a,b)恰为关于a,b的广义黄金分割数.在附加条件b<δ2... 令a,b为任意固定正常数,并记δ=δ(a,b)=a+b/(a+b).考虑广义Fibonacci序列F{n}为:Fn=aF_(n-1)+bF_(n-2),n≥2,F0=F1=1.一个熟知的基本事实是:比值序列{F_n/F_(n+1)}收敛,且其极限g(a,b)恰为关于a,b的广义黄金分割数.在附加条件b<δ2的情况下,给出这个基本结论的一个新的、内蕴的证明.同时,由此也得到广义黄金分割数g(a,b)的连分数表达. 展开更多
关键词 广义FIBONaCCI数列 比值数列 极限 广义黄金分割数 连分数
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