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进城农民工多维贫困测度及不平等程度分析——基于社会融合视角
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作者 王青 刘烁 《数量经济技术经济研究》 CSSCI CSCD 北大核心 2020年第1期83-101,共19页
研究目标:基于社会融合视角下探讨进城农民工多维贫困程度。研究方法:AF方法、CSPI指数、分离不平等程度测度、Logit回归。研究发现:进城农民工不存在较为严重的多维贫困,但存在不可忽略的不平等,且教育、社会融合、社会保障维度对多维... 研究目标:基于社会融合视角下探讨进城农民工多维贫困程度。研究方法:AF方法、CSPI指数、分离不平等程度测度、Logit回归。研究发现:进城农民工不存在较为严重的多维贫困,但存在不可忽略的不平等,且教育、社会融合、社会保障维度对多维贫困的贡献率较高;女性较男性贫困,老一代较新一代贫困,且男女及新老一代表现出不同的贫困特征;工作强度较强及城镇化水平越高的城市可加大多维贫困的可能性但却减缓了收入贫困。研究创新:本文基于个人层面考虑了进城农民工社会融合维度构建多维贫困指标体系,测度了不平等程度,并探讨了性别及新老一代多维贫困差异。研究价值:为进城农民工如何减少多维贫困从而更好地生活和发展提供相关建议。 展开更多
关键词 进城农民工 多维贫困 不平等程度 性别差异 新老一代差异
ON BONNESEN-STYLE SYMMETRIC MIXED ISOHOMOTHETIC INEQUALITY IN R^2 预览
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作者 王媛媛 王星星 曾春娜 《数学物理学报:B辑英文版》 SCIE CSCD 2019年第5期1319-1329,共11页
In this paper, we investigate the translative containment measure for a convex domain Ki to contain, or to be contained in the homothetic copy of another convex domain tKj(t ≥ 0). Via the formulas of translative Blas... In this paper, we investigate the translative containment measure for a convex domain Ki to contain, or to be contained in the homothetic copy of another convex domain tKj(t ≥ 0). Via the formulas of translative Blaschke and Poincaré in integral formula, we obtain a Bonnesen-style symmetric mixed isohomothetic inequality. The Bonnesen-style symmetric mixed isohomothetic inequality obtained is known as Bonnesen-style inequality if one of the domains is a disc. As a direct consequence, we attain an inequality which strengthen the result proved by Bonnesen, Blaschké and Flanders. Furthermore, by the containment measure and Blaschke's rolling theorem, we obtain the reverse Bonnesen-style symmetric mixed isohomothetic inequalities. These inequalities are the analogues of the known Bottema's result in 1933. 展开更多
关键词 translative containment measure ISOPERIMETRIC INEQUALITY Bonnesen-style INEQUALITY Bonnesen-style SYMMETRIC MIXED isohomothetic INEQUALITY reverse Bonessen-style SYMMETRIC MIXED isohomothetic INEQUALITY
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Numerical Radius Inequalities for Sums and Products of Operators 预览
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作者 Wasim Audeh 《线性代数与矩阵理论研究进展(英文)》 2019年第3期35-42,共8页
A numerical radius inequality due to Shebrawi and Albadawi says that: If Ai, Bi, Xi are bounded operators in Hilbert space, i = 1,2,..., n , and f,g be nonnegative continuous functions on [0, ∞) satisfying the relati... A numerical radius inequality due to Shebrawi and Albadawi says that: If Ai, Bi, Xi are bounded operators in Hilbert space, i = 1,2,..., n , and f,g be nonnegative continuous functions on [0, ∞) satisfying the relation f(t)g(t) = t (t∈[0, ∞)), then for all r≥1. We give sharper numerical radius inequality which states that: If Ai, Bi, Xi are bounded operators in Hilbert space, i = 1,2,..., n , and f,g be nonnegative continuous functions on [0, ∞) satisfying the relation f(t)g(t) = t (t∈[0, ∞)), then ?where . Moreover, we give many numerical radius inequalities which are sharper than related inequalities proved recently, and several applications are given. 展开更多
关键词 Numeriacl Radius OPERATOR NORM OPERATOR Matrix INEQUALITY EQUALITY Offdiagonal Part
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MIXED VARIATIONAL INEQUALITIES DRIVEN BY FRACTIONAL EVOLUTIONARY EQUATIONS 预览
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作者 Stanislaw MIGORSKI 曾生达 《数学物理学报:B辑英文版》 SCIE CSCD 2019年第2期461-468,共8页
The goal of the present paper is to investigate an abstract system, called fractional differential variational inequality, which consists of a mixed variational inequality combined with a fractional evolution equation... The goal of the present paper is to investigate an abstract system, called fractional differential variational inequality, which consists of a mixed variational inequality combined with a fractional evolution equation in the framework of Banach spaces. Using discrete approximation approach, an existence theorem of solutions for the inequality is established under some suitable assumptions. 展开更多
关键词 FRACTIONAL differential VARIATIONAL INEQUALITY CO-SEMIGROUP Minty mixed VARIATIONAL INEQUALITY existence MILD solutions
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国内外近5年信息不平等研究进展
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作者 王君 张巍巍 郏江杰 《图书馆学研究》 CSSCI 北大核心 2019年第17期10-20,共11页
为了解国内外信息不平等的研究进展,文章以Web of Science核心合集引文索引和中国社会科学引文索引中收录的与信息不平等主题相关的重点文献为基础,梳理近5年国内外关于信息不平等的研究论文,系统回顾近5年该领域的研究主题、研究理论... 为了解国内外信息不平等的研究进展,文章以Web of Science核心合集引文索引和中国社会科学引文索引中收录的与信息不平等主题相关的重点文献为基础,梳理近5年国内外关于信息不平等的研究论文,系统回顾近5年该领域的研究主题、研究理论与方法及影响因素,从国内外研究的对比分析中找出目前的研究特点和未来的研究重点。 展开更多
关键词 不平等 信息不平等 国内外 数字鸿沟
New Brunn-Minkowski Type Inequalities for General Width-Integral of Index i
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作者 ZHANG Xuefu WU Shanhe 《武汉大学学报:自然科学英文版》 CAS CSCD 2019年第6期474-478,共5页
Recently, the general width-integral of index i was introduced and some of its isoperimetric inequalities were established. In this paper, we establish some new Brunn-Minkowski type inequalities for general width-inte... Recently, the general width-integral of index i was introduced and some of its isoperimetric inequalities were established. In this paper, we establish some new Brunn-Minkowski type inequalities for general width-integral of index i. 展开更多
关键词 Brunn-Minkowski inequality general width-integral of index i Minkowski’s integral inequality convex body
An Equivalent Form of Strong Lemoine Conjecture and Several Relevant Results
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作者 ZHANG Shaohua 《武汉大学学报:自然科学英文版》 CAS CSCD 2019年第3期229-232,共4页
In this paper, we consider some problems involving Strong Lemoine Conjecture in additive number theory. Based on Dusart’s inequality and Rosser-Schoenfeld’s inequality, we obtain several new results and give an equi... In this paper, we consider some problems involving Strong Lemoine Conjecture in additive number theory. Based on Dusart’s inequality and Rosser-Schoenfeld’s inequality, we obtain several new results and give an equivalent form of Strong Lemoine Conjecture. 展开更多
关键词 Lemoine CONJECTURE Dusart’s INEQUALITY Rosser-Schoenfeld’s INEQUALITY EULER totient FUNCTION primecounting FUNCTION
Volume Difference Inequalities for the Polars of Mixed Complex Projection Bodies 预览
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作者 Han Bo Zhang Yuan-yuan +1 位作者 Wang Wei-dong Rong Xiao-chun 《数学研究通讯:英文版》 CSCD 2019年第2期149-158,共10页
In this paper, based on the notion of mixed complex projection and generalized the recent works of other authors, we obtain some volume difference inequalities containing Brunn-Minkowski type inequality, Minkowski typ... In this paper, based on the notion of mixed complex projection and generalized the recent works of other authors, we obtain some volume difference inequalities containing Brunn-Minkowski type inequality, Minkowski type inequality and Aleksandrov-Fenchel inequality for the polars of mixed complex projection bodies. 展开更多
关键词 mixed complex PROJECTION body polar VOLUME DIFFERENCE Brunn-Minkowski TYPE INEQUALITY MINKOWSKI TYPE INEQUALITY
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再谈Van Der Corput不等式单参数推广的改进 被引量:1
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作者 韦新 《数学的实践与认识》 北大核心 2019年第9期278-285,共8页
研究Van Der Corput不等式的一类单参数推广,提出了一个新的上界模型,建立了Van Der Corput不等式更优的推广形式.
关键词 不等式 VAN Der Corput不等式 改进 最大值单调性定理
Inequality of Realization of a Stochastic Dynamics Based on the Erd&ouml;s Discrepancy Problem 预览
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作者 Hiroyuki Kato 《应用数学(英文)》 2019年第10期836-847,共12页
This paper proposes a stochastic dynamics model in which people who are endowed with different discount factors chose to buy the capital stock periodically with different periodicities and are exposed to randomness at... This paper proposes a stochastic dynamics model in which people who are endowed with different discount factors chose to buy the capital stock periodically with different periodicities and are exposed to randomness at arithmetic progression times. We prove that the realization of a stochastic equilibrium may render to the people quite unequal benefits. Its proof is based on Erd&ouml;s Discrepancy Problem that an arithmetic progression sum of any sign sequence goes to infinity, which is recently solved by Terence Tao [1]. The result in this paper implies that in some cases, the sources of inequality come from pure luck. 展开更多
关键词 Erd?s DISCREPANCY PROBLEM ARITHMETIC PROGRESSION INEQUALITY Economic Dynamics
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Halanay-type inequality with delayed impulses and its applications
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作者 Yaqi WANG Jianquan LU Yijun LOU 《中国科学:信息科学(英文版)》 SCIE EI CSCD 2019年第9期158-167,共10页
In this study, some properties of a novel Halanay-type inequality that simultaneously contains impulses and delayed impulses are investigated. Two concepts with respect to average impulsive gain are proposed to descri... In this study, some properties of a novel Halanay-type inequality that simultaneously contains impulses and delayed impulses are investigated. Two concepts with respect to average impulsive gain are proposed to describe hybrid impulsive strength and hybrid delayed impulsive strength. Then, using the obtained results, two stability criteria are derived for the linear systems with impulses and delayed impulses.It is found that the stability of impulsive systems is robust with respect to delayed impulses of which the magnitude strength is relatively small. Whereas, if the impulse strength is small, the time-delayed impulses can also promote the stability of unstable systems. Two numerical examples are employed to illustrate the efficiency of our results. 展开更多
关键词 Halanay-type INEQUALITY hybrid IMPULSES AVERAGE IMPULSIVE GAIN DELAYED IMPULSES linear IMPULSIVE systems
新时代我国社会主要矛盾蕴含的平等问题探析 预览
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作者 徐珍 《武汉大学学报:哲学社会科学版》 CSSCI 北大核心 2019年第6期31-40,共10页
平等要求是新时代人民美好生活需要的重要维度,然而,新时代我国不平衡不充分发展中内存着各种形式的不平等。新时代我国社会主要矛盾蕴含的平等问题的实质,就在于新时代人民的平等要求与不平衡不充分发展中的不平等之间存在着突出的矛盾... 平等要求是新时代人民美好生活需要的重要维度,然而,新时代我国不平衡不充分发展中内存着各种形式的不平等。新时代我国社会主要矛盾蕴含的平等问题的实质,就在于新时代人民的平等要求与不平衡不充分发展中的不平等之间存在着突出的矛盾,它是新时代我国社会主要矛盾的重要构成方面。有效化解和克服这一矛盾有利于从整体上解决新时代我国社会的主要矛盾。它必须从以下几个方面入手:一是实施乡村振兴战略,消除城乡之间不平衡发展内含的不平等;二是实施区域协调发展战略,消除不同区域之间不平衡发展内含的不平等;三是深化供给侧结构性改革和实施创新驱动发展战略,消除行业或产业不平衡发展内含的不平等,特别是消除我国经济社会不充分发展对不平衡发展内含的不平等的加剧;四是健全人民当家作主制度体系,努力实现人民的权利平等和机会平等。 展开更多
关键词 新时代我国社会主要矛盾 平等问题 发展不平衡 发展不充分 不平等
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Bonferroni平均的Schur凸性及应用 预览
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作者 王东生 付春茹 石焕南 《兰州理工大学学报》 CAS 北大核心 2019年第5期153-158,共6页
研究 n 元Bonferroni平均的Schur凸性,Schur几何凸性和Schur调和凸性,并建立了若干新的 n 元均值不等式.
关键词 Bonferroni平均 SCHUR凸性 Schur几何凸性 Schur调和凸性 受控 不等式
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Estimate and Fekete-Szeg? Inequality for a Class of m-Fold Symmetric Bi-Univalent Function Defined by Subordination
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作者 Dong GUO Huo TANG +1 位作者 En AO Liangpeng XIONG 《数学研究及应用:英文版》 CSCD 2019年第3期295-303,共9页
In this paper, we investigate the coefficient estimate and Fekete-Szeg? inequality of a class of m-fold bi-univalent function defined by subordination. The results presented in this paper improve or generalize the rec... In this paper, we investigate the coefficient estimate and Fekete-Szeg? inequality of a class of m-fold bi-univalent function defined by subordination. The results presented in this paper improve or generalize the recent works of other authors. 展开更多
关键词 analytic FUNCTIONS UNIVALENT FUNCTIONS coefficient estimates m-fold SYMMETRIC bi-univalent function Fekete-Szeg? INEQUALITY SUBORDINATION
全球主要发达国家宏观收入分配格局特征、成因及政策启示 预览
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作者 年猛 《当代经济管理》 CSSCI 北大核心 2019年第3期1-10,共10页
演收入分配关系到经济持续发展和社会稳定,一直以来都得到各国政府和社会公众的高度关注。实现收入分配公正且合理是现代政府治国理政的重要目标。文章通过国际对比,从宏观层面分析世界主要发达国家收入分配格局现状、趋势及原因,为我... 演收入分配关系到经济持续发展和社会稳定,一直以来都得到各国政府和社会公众的高度关注。实现收入分配公正且合理是现代政府治国理政的重要目标。文章通过国际对比,从宏观层面分析世界主要发达国家收入分配格局现状、趋势及原因,为我国宏观收入分配格局的优化、调整,提供有益的借鉴和参考。 展开更多
关键词 宏观收入分配格局 发达国家 不平等
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有关不完全Gamma函数的渐近展式及不等式 预览
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作者 赵婉莹 《东北师大学报:自然科学版》 CAS 北大核心 2019年第3期30-33,共4页
建立了一个Ip(x)的渐近展开,基于这个渐近展开,得到了一个关于Ip(x)的新的不等式.
关键词 不完全Gamma函数 渐近展开 不等式
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居民休闲消费不平等研究——以北京市为例 预览
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作者 王琪延 韦佳佳 《经济理论与经济管理》 CSSCI 北大核心 2019年第5期103-112,共10页
休闲消费蕴含休闲时间消费和休闲消费支出。本文以北京市为例,探讨居民休闲消费不平等问题。研究发现,休闲时间消费和休闲消费支出不平等现象日趋显著。本文通过K-means均值聚类刻画了休闲时间消费差异。构建回归模型发现,休闲时间和收... 休闲消费蕴含休闲时间消费和休闲消费支出。本文以北京市为例,探讨居民休闲消费不平等问题。研究发现,休闲时间消费和休闲消费支出不平等现象日趋显著。本文通过K-means均值聚类刻画了休闲时间消费差异。构建回归模型发现,休闲时间和收入是影响休闲消费支出的主要因素,随着年份的推移,休闲时间逐渐成为影响“有钱无闲”群体休闲消费支出的主要因素,收入的拉动作用逐渐弱化。对于“有闲无钱”群体,虽然增加该群体收入能有效提高其休闲消费水平,但收入与年份交叉项并不显著。 展开更多
关键词 休闲时间消费 休闲消费支出 休闲消费 收入 不平等
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基于Tri-Gamma函数的Gamma函数的一个渐近公式 预览
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作者 田丹 王连堂 《宁夏大学学报:自然科学版》 CAS 2019年第2期106-110,共5页
首先,建立一个基于Tri-Gamma函数的Gamma函数的一个渐近公式.然后,得到其最佳常数、渐近展式和关于Gamma函数的双向不等式.
关键词 GAMMA函数 Tri-Gamma函数 收敛速度 渐近展式 不等式
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A Differential Harnack Inequality for the Newell-Whitehead-Segel Equation 预览
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作者 Derek Booth Jack Burkart +4 位作者 Xiaodong Cao Max Hallgren Zachary Munro Jason Snyder Tom Stone 《分析理论与应用:英文刊》 CSCD 2019年第2期192-204,共13页
This paper will develop a Li-Yau-Hamilton type differential Harnack estimate for positive solutions to the Newell-Whitehead-Segel equation on R^n.We then use our LYH-differential Harnack inequality to prove several pr... This paper will develop a Li-Yau-Hamilton type differential Harnack estimate for positive solutions to the Newell-Whitehead-Segel equation on R^n.We then use our LYH-differential Harnack inequality to prove several properties about positive solutions to the equation,including deriving a classical Harnack inequality and characterizing standing solutions and traveling wave solutions. 展开更多
关键词 Newell-Whitehead-Segel EQUATION Harnack ESTIMATE Harnack INEQUALITY wave solutions.
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An Inexact Modified Newton Method for Viscc and Application in Grasping Force
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作者 Shuang CHEN Li-ping PANG +1 位作者 Dan LI Jin-he WANG 《应用数学学报:英文版》 SCIE CSCD 2019年第3期591-606,共16页
For the variational inequality with symmetric cone constraints problem,we consider using the inexact modified Newton method to efficiently solve it.It provides a unified framework for dealing with the variational ineq... For the variational inequality with symmetric cone constraints problem,we consider using the inexact modified Newton method to efficiently solve it.It provides a unified framework for dealing with the variational inequality with nonlinear constraints,variational inequality with the second-order cone constraints,and the variational inequality with semi-definite cone constraints.We show that each stationary point of the unconstrained minimization reformulation based on the Fischer-Burmeister merit function is a solution to the problem.It is proved that the proposed algorithm is globally convergent under suitable conditions.The computation results show that the feasibility and efficiency of our algorithm. 展开更多
关键词 VARIATIONAL INEQUALITY symmetric cone INEXACT modified NEWTON method Fischer-Burmeister function
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