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Some properties of monotone set functions defined by Choquet integral 被引量:4
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作者 欧阳耀 李军 《Journal of Southeast University(English Edition)》 EI CAS 2003年第4期423-426,共4页
In this paper, some properties of the monotone set function defined by theChoquet integral are discussed. It is shown that several important structural characteristics of theoriginal set function, such as weak null-ad... In this paper, some properties of the monotone set function defined by theChoquet integral are discussed. It is shown that several important structural characteristics of theoriginal set function, such as weak null-additivity, strong order continuity, property (s) andpseudomelric generating property, etc., are preserved by the new set function. It is also shown thatC-integrability assumption is inevitable for the preservations of strong order continuous andpseudometric generating property. 展开更多
关键词 non-additive measure monotone set function choquet integral
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The Lebesgue Measure of the Julia Sets of Permutable Transcendental Entire Functions
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作者 Cunji Yang Shaomin Wang 《Advances in Pure Mathematics》 2022年第9期526-534,共9页
In 1958, Baker posed the question that if f and g are two permutable transcendental entire functions, must their Julia sets be the same? In order to study this problem of permutable transcendental entire functions, by... In 1958, Baker posed the question that if f and g are two permutable transcendental entire functions, must their Julia sets be the same? In order to study this problem of permutable transcendental entire functions, by the properties of permutable transcendental entire functions, we prove that if f and g are permutable transcendental entire functions, then mes (J(f)) = mes (J(g)). Moreover, we give some results about the zero measure of the Julia sets of the permutable transcendental entire functions family. 展开更多
关键词 Transcendental Entire function Permutable functions Random Dynamics Julia set Lebesgue Measure
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Analytical Evaluation of Non-Elementary Integrals Involving Some Exponential, Hyperbolic and Trigonometric Elementary Functions and Derivation of New Probability Measures Generalizing the Gamma-Type and Gaussian-Type Distributions 被引量:1
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作者 Victor Nijimbere 《Advances in Pure Mathematics》 2020年第7期371-392,共22页
The non-elementary integrals involving elementary exponential, hyperbolic and trigonometric functions, <img src="Edit_699140d3-f569-463e-b835-7ccdab822717.png" width="290" height="22" ... The non-elementary integrals involving elementary exponential, hyperbolic and trigonometric functions, <img src="Edit_699140d3-f569-463e-b835-7ccdab822717.png" width="290" height="22" alt="" /><img src="Edit_bdd10470-9b63-4b2d-9cec-636969547ca5.png" width="90" height="22" alt="" /><span style="white-space:normal;">and <img src="Edit_e9cd6876-e2b8-45cf-ba17-391f054679b4.png" width="90" height="21" alt="" /></span>where <span style="white-space:nowrap;"><em>&#945;</em>,<span style="white-space:nowrap;"><em>&#951;</em></span><em></em></span> and <span style="white-space:nowrap;"><em>&#946;</em></span> are real or complex constants are evaluated in terms of the confluent hypergeometric function <sub>1</sub><em>F</em><sub>1</sub> and the hypergeometric function <sub>1</sub><em>F</em><sub>2</sub>. The hyperbolic and Euler identities are used to derive some identities involving exponential, hyperbolic, trigonometric functions and the hypergeometric functions <sub style="white-space:normal;">1</sub><em style="white-space:normal;">F</em><sub style="white-space:normal;">1</sub> and <sub style="white-space:normal;">1</sub><em style="white-space:normal;">F</em><sub style="white-space:normal;">2</sub>. Having evaluated, these non-elementary integrals, some new probability measures generalizing the gamma-type and Gaussian distributions are also obtained. The obtained generalized probability distributions may, for example, allow to perform better statistical tests than those already known (e.g. chi-square (<span style="white-space:nowrap;"><em>&#120;</em><sup>2</sup></span>) statistical tests and other statistical tests constructed based on the central limit theorem (CLT)), while avoiding the use of computational approximations (or methods) which are in general expensive and associated with numerical errors. 展开更多
关键词 Non-Elementary Integrals Hypergeometric function Confluent Hypergeometric function Probability Measure generalized Gamma-Type Distributions generalized Gaussian-Type Distributions
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Investigation of Probability Generating Function in an Interdependent <i>M/M/</i>1:(∞;GD) Queueing Model with Controllable Arrival Rates Using Rouche’s Theorem
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作者 Vishwa Nath Maurya 《Open Journal of Optimization》 2012年第2期34-38,共5页
Present paper deals a M/M/1:(∞;GD) queueing model with interdependent controllable arrival and service rates where- in customers arrive in the system according to poisson distribution with two different arrivals rate... Present paper deals a M/M/1:(∞;GD) queueing model with interdependent controllable arrival and service rates where- in customers arrive in the system according to poisson distribution with two different arrivals rates-slower and faster as per controllable arrival policy. Keeping in view the general trend of interdependent arrival and service processes, it is presumed that random variables of arrival and service processes follow a bivariate poisson distribution and the server provides his services under general discipline of service rule in an infinitely large waiting space. In this paper, our central attention is to explore the probability generating functions using Rouche’s theorem in both cases of slower and faster arrival rates of the queueing model taken into consideration;which may be helpful for mathematicians and researchers for establishing significant performance measures of the model. Moreover, for the purpose of high-lighting the application aspect of our investigated result, very recently Maurya [1] has derived successfully the expected busy periods of the server in both cases of slower and faster arrival rates, which have also been presented by the end of this paper. 展开更多
关键词 Interdependent QUEUEING Model BIVARIATE Poisson Process Controllable Arrival Rates Probability Generating function Laplace Transform Rouche’s THEOREM Performance Measures
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INVESTIGATION ON MAKING MEMBERSHIP FUNCTION OF WATER MASS FROM MIXING MODIFIED PROCESS
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作者 李凤岐 苏育嵩 +1 位作者 喻祖祥 王凤钦 《中国海洋大学学报(自然科学版)》 CAS CSCD 1989年第S1期445-461,共17页
A water mass in the sea area under investigation is defined as a fuzzy subset in the discourse universe. Possible forms of membership function of water masses in the mixing modified process are discussed with the mixi... A water mass in the sea area under investigation is defined as a fuzzy subset in the discourse universe. Possible forms of membership function of water masses in the mixing modified process are discussed with the mixing theory for conservative concentration of sea water. It may provide bases for making membership functions. Results in this paper may be extended and applied to shallow water. Examples and discussion are given in this paper. 展开更多
关键词 water mass fuzzy setS MEMBERSHIP function the measure-value space
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A Basic Topological Approach to the Continuity of the Size Function
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作者 François Dubeau 《Advances in Pure Mathematics》 2022年第10期565-586,共22页
We present old and new results about the size function of a set providing simple and complete proofs using basic tools of general topology. For instance, the decomposition of the size function is given and, under the ... We present old and new results about the size function of a set providing simple and complete proofs using basic tools of general topology. For instance, the decomposition of the size function is given and, under the calmness property of a set, the right continuity of the size function with respect to both arguments is established. Finally, a classification of its points of discontinuity is given. 展开更多
关键词 Size function Connexity PATH Calm set Measure function
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THE RANDOM SHIFT SET AND RANDOM SUB-SELF-SIMILAR SET 被引量:2
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作者 胡迪鹤 张晓敏 《Acta Mathematica Scientia》 SCIE CSCD 2007年第2期267-273,共7页
First of all the authors introduce the concepts of random sub-self-similar set and random shift set and then construct the random sub-self-similar set by a random shift set and a collection of statistical contraction ... First of all the authors introduce the concepts of random sub-self-similar set and random shift set and then construct the random sub-self-similar set by a random shift set and a collection of statistical contraction operators. 展开更多
关键词 Random sub-self-similar set random shift set Hausdorff dimension exact Hausdorff measure function Hausdorff metric
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THE DIMENSION FOR RANDOM SUB-SELF-SIMILAR SET 被引量:1
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作者 胡迪鹤 张晓敏 《Acta Mathematica Scientia》 SCIE CSCD 2007年第3期561-573,共13页
In this article, the Hausdorff dimension and exact Hausdorff measure function of any random sub-self-similar set are obtained under some reasonable conditions. Several examples are given at the end.
关键词 Random sub-self-similar set random shift set Hausdorff dimension exact Hausdorff measure function Hausdorff metric
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HAUSDORFF DIMENSION OF GENERALIZED STATISTICALLY SELF-AFFINE FRACTALS
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作者 余旌胡 丁立新 《Acta Mathematica Scientia》 SCIE CSCD 2004年第3期421-433,共13页
The authors consider generalized statistically self-affine recursive fractals K with random numbers of subsets on each level. They obtain the Hausdorff dimensions of K without considering whether the subsets on each l... The authors consider generalized statistically self-affine recursive fractals K with random numbers of subsets on each level. They obtain the Hausdorff dimensions of K without considering whether the subsets on each level are non-overlapping or not. They also give some examples to show that many important sets are the special cases of their models. 展开更多
关键词 Self-affine contraction map statistically recursive set statistically self-affine set Hausdorff measure Hausdorff dimension singular value function
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The Advances of the Research for Random Recursive Sets(Ⅰ)
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作者 HU Di\|he (College of Mathematics and Computer Science, Wuhan University,Wuhan 430072, China) 《Wuhan University Journal of Natural Sciences》 CAS 1999年第4期381-381,共1页
We introduce the probability properties of random recursive sets systematically in this paper. The main contents include convergence, zero\|one law and support of distribution and self\|similarity.Hutchinson construct... We introduce the probability properties of random recursive sets systematically in this paper. The main contents include convergence, zero\|one law and support of distribution and self\|similarity.Hutchinson constructed a class of strictly self\|similar sets and got many important results on fractal properties.Graf investigated the fractal properties of a special statistically self\|similar set. We have investigated various self\|similar sets and their probability properties and fractal properties.\; 展开更多
关键词 random recursive set statistically self\|similar set Hausdorff dimension exact measure function
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HAUSDORFF CENTRED MEASURE OF NON-SYMMETRY CANTOR SETS
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作者 RuanHuojun DaiMeifeng SuWeiyi 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2005年第2期235-242,共8页
Let 0<λ_1,λ_2<1 and 1-λ_1-λ_2≥max{λ_1,λ_2}.Let ~K(λ_1,λ_2) be the attractor of the iterated function system {φ_1,φ_2}on the line,where φ_1(x)=λ_1x and φ_2(x)=1-λ_2+λ_2x,x∈R.~K(λ_1,λ_2) is ... Let 0<λ_1,λ_2<1 and 1-λ_1-λ_2≥max{λ_1,λ_2}.Let ~K(λ_1,λ_2) be the attractor of the iterated function system {φ_1,φ_2}on the line,where φ_1(x)=λ_1x and φ_2(x)=1-λ_2+λ_2x,x∈R.~K(λ_1,λ_2) is called a non-symmetry Cantor set. In this paper,it is proved that the exact Hausdorff centred measure of K(λ_1,λ_2) equals 2s(1-λ)s,where λ=max{λ_1,λ_2} and s is the Hausdorff dimension of K(λ_1,λ_2). 展开更多
关键词 non-symmetry Cantor set Hausdorff centred measure iterated function system.
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Generalized Schwarzian Derivatives and Analytic Morrey Spaces
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作者 JIN Jian-jun LI Hua-bing TANG Shu-an 《Chinese Quarterly Journal of Mathematics》 2019年第2期171-187,共17页
In this paper,we study univalent functions f for which log f’belongs to the analytic Morrey spaces.By using the characterization of higher order derivatives of functions in analytic Morrey spaces,we establish some ne... In this paper,we study univalent functions f for which log f’belongs to the analytic Morrey spaces.By using the characterization of higher order derivatives of functions in analytic Morrey spaces,we establish some new descriptions for the analytic Morrey domains in terms of two kinds of generalized Schwarzian derivatives. 展开更多
关键词 ANALYTIC MORREY SPACES UNIVALENT functions Schwarzian derivative generalized Schwarzian derivatives CARLESON measure
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Modeling Multisource-heterogeneous Information Based on Random Set and Fuzzy Set Theory
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作者 文成林 徐晓滨 《Journal of Donghua University(English Edition)》 EI CAS 2006年第6期87-92,共6页
This paper presents a new idea, named as modeling multisensor-heterogeneous information, to incorporate the fuzzy logic methodologies with mulitsensor-multitarget system under the framework of random set theory. First... This paper presents a new idea, named as modeling multisensor-heterogeneous information, to incorporate the fuzzy logic methodologies with mulitsensor-multitarget system under the framework of random set theory. Firstly, based on strong random set and weak random set, the unified form to describe both data (unambiguous information) and fuzzy evidence (uncertain information) is introduced. Secondly, according to signatures of fuzzy evidence, two Bayesian-markov nonlinear measurement models are proposed to fuse effectively data and fuzzy evidence. Thirdly, by use of "the models-based signature-matching scheme", the operation of the statistics of fuzzy evidence defined as random set can be translated into that of the membership functions of relative point state variables. These works are the basis to construct qualitative measurement models and to fuse data and fuzzy evidence. 展开更多
关键词 random set theory DATA fuzzy evidence fuzzy membership functions qualitative measurement model.
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Generalized Maximum Fuzzy Entropy Methods with Applications on Wind Speed Data
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作者 Aladdin Shamilov Sevil Senturk Nihal Yilmaz 《Journal of Mathematics and System Science》 2016年第1期46-52,共7页
This study is connected with new Generalized Maximum Fuzzy Entropy Methods (GMax(F)EntM) in the form of MinMax(F)EntM and MaxMax(F)EntM belonging to us. These methods are based on primary maximizing Max(F)En... This study is connected with new Generalized Maximum Fuzzy Entropy Methods (GMax(F)EntM) in the form of MinMax(F)EntM and MaxMax(F)EntM belonging to us. These methods are based on primary maximizing Max(F)Ent measure for fixed moment vector function in order to obtain the special functional with maximum values of Max(F)Ent measure and secondary optimization of mentioned functional with respect to moment vector functions. Distributions, in other words sets of successive values of estimated membership function closest to (furthest from) the given membership function in the sense of Max(F)Ent measure, obtained by mentioned methods are defined as (MinMax(F)Ent)m which is closest to a given membership function and (MaxMax(F)Ent)m which is furthest from a given membership function. The aim of this study consists of applying MinMax(F)EntM and MaxMax(F)EntM on given wind speed data. Obtained results are realized by using MATLAB programme. The performances of distributions (MinMax(F)En0m and (MaxMax(F)Ent)m generated by using Generalized Maximum Fuzzy Entropy Methods are established by Chi-Square, Root Mean Square Error criterias and Max(F)Ent measure. 展开更多
关键词 Maximum fuzzy entropy measure generalized maximum fuzzy entropy methods Moment vector functions Membership function.
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On mathematical structures of fuzzy rough set algebras
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作者 WU Wei-zhi 《重庆邮电大学学报(自然科学版)》 2008年第3期363-369,共7页
In rough set theory,the lower and upper approximation operators are important notions defined by a binary relation.In this paper,we introduce a general type of relation-based fuzzy rough model determined by a triangul... In rough set theory,the lower and upper approximation operators are important notions defined by a binary relation.In this paper,we introduce a general type of relation-based fuzzy rough model determined by a triangular norm.Properties of fuzzy rough approximation operators are examined.The fuzzy rough approximation operators are also characterized by axioms.A comparative study of the fuzzy rough set algebra with other mathematical structures such as fuzzy topological spaces,fuzzy measurable spaces,and fuzzy belief structures is investigated. 展开更多
关键词 数字结构 模糊计算 数据处理 粗糙集
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实变函数中简单函数的研究
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作者 李晓萌 秦喜梅 苏先锋 《河北北方学院学报(自然科学版)》 2024年第5期1-5,共5页
实变函数较之数学分析更加抽象复杂,是近代数学的重要基础。简单函数是实变函数中非常基础且具体的重要函数类。围绕简单函数与可测函数间的联系,及其在Lebesgue积分中的运用等问题开展研究,探讨简单函数在实变函数教学中的广泛应用,以... 实变函数较之数学分析更加抽象复杂,是近代数学的重要基础。简单函数是实变函数中非常基础且具体的重要函数类。围绕简单函数与可测函数间的联系,及其在Lebesgue积分中的运用等问题开展研究,探讨简单函数在实变函数教学中的广泛应用,以期实现降低学习的难度提升实变函数的教学效果目的。 展开更多
关键词 实变函数 简单函数 LEBESGUE测度 LEBESGUE积分
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考虑不良杠杆量测的电力系统抗差状态估计方法
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作者 黄亚峰 朱登宝 《电气自动化》 2024年第2期22-24,27,共4页
针对电力系统状态估计中,不良杠杆量测会造成坏数据辨识失败,进而导致状态估计结果精度低的问题,基于广义潜能指标和中国科学院大地测量与地球物理研究所提出的IGGⅢ函数,提出了一种考虑不良杠杆量测的电力系统抗差状态估计方法。首先... 针对电力系统状态估计中,不良杠杆量测会造成坏数据辨识失败,进而导致状态估计结果精度低的问题,基于广义潜能指标和中国科学院大地测量与地球物理研究所提出的IGGⅢ函数,提出了一种考虑不良杠杆量测的电力系统抗差状态估计方法。首先利用基于凝聚聚类改进后的广义潜能指标快速准确辨识杠杆量测;然后将IGGⅢ函数平滑处理后与最小二乘估计结合,实现抗差状态估计;最后在华北地区某实际风电场系统验证所提方法能准确识别杠杆量测。结果表明,所提方法有较好的抗差性能和计算精度,有利于工程实际应用。 展开更多
关键词 不良杠杆量测 广义潜能指标 凝聚聚类 IGGⅢ函数 抗差状态估计
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PERTURBING FAMILIES OF GENERALIZED LYAPUNOV FUNCTIONS AND RELATIVE STABILITY IN TERMS OF TWO MEASURES
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作者 商立军 张棣 《Annals of Differential Equations》 1995年第3期310-315,共6页
In this paper, we use perturbing families of gernerlized Lyapunov functions to discuss ' the relative stability of ordinary differential systems in terms of two measures and gain some criteria for this stability o... In this paper, we use perturbing families of gernerlized Lyapunov functions to discuss ' the relative stability of ordinary differential systems in terms of two measures and gain some criteria for this stability of asymptotic.' 展开更多
关键词 perturbing families of generalized lyapunov functions relative asymptoticstability measure.
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复合函数黎曼可积性的讨论
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作者 郑雄军 《高等数学研究》 2024年第1期3-4,75,共3页
本文利用有界函数黎曼可积的充要条件讨论了某些复合函数的黎曼可积性,给出了外函数黎曼可积,内函数连续,复合函数不一定黎曼可积的例子.
关键词 复合函数 黎曼可积 零测度集
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改进的居民地要素模板匹配化简方法
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作者 李安平 翟仁健 +3 位作者 殷吉崇 朱丽 徐杨斌 万瑞康 《测绘科学技术学报》 2024年第5期541-550,共10页
针对基于转角函数的模板匹配化简方法易出现的3类化简错误,即模板库找不到合适的化简模板、计算形状相似度时错误选择模板、化简结果出现位置及方向偏差等问题,提出一种改进的居民地要素模板匹配化简方法。首先构建基于转角函数的无偏... 针对基于转角函数的模板匹配化简方法易出现的3类化简错误,即模板库找不到合适的化简模板、计算形状相似度时错误选择模板、化简结果出现位置及方向偏差等问题,提出一种改进的居民地要素模板匹配化简方法。首先构建基于转角函数的无偏相似性度量模型,减小居民地与模板之间的形状相似性度量误差,然后将匹配过程划分为“粗匹配”和“精匹配”两个阶段,克服形状相似性度量对边界起始点选择的敏感性,提高匹配效率,最后针对化简区域或邻近区域已有更小尺度居民地数据的情况,研究模板库自动扩充方法,提高模板库的完备性。通过真实数据试验分析,验证了本文方法在化简中能保持居民地的主体形态特征,实现不同尺度的化简。与现有方法相比,本文方法能够有效克服3类化简错误,提高对复杂居民地的化简率,使化简居民地与模板之间的形状吻合度更高。 展开更多
关键词 模板匹配 转角函数 居民地化简 制图综合 模板库 相似性度量
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