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THE SCHUR HARMONIC CONVEXITY FOR A CLASS OF SYMMETRIC FUNCTIONS 被引量:13
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作者 褚玉明 孙天川 《Acta Mathematica Scientia》 SCIE CSCD 2010年第5期1501-1506,共6页
In this article, we prove that the symmetric function Fn(x,r)=∑i1+i2+……in=r(x1(i1x2^i2……xn^in)1/r is Schur harmonic convex for x ∈ R+n and r ∈N -=(1, 2, 3,...} As its applications, some analytic inequa... In this article, we prove that the symmetric function Fn(x,r)=∑i1+i2+……in=r(x1(i1x2^i2……xn^in)1/r is Schur harmonic convex for x ∈ R+n and r ∈N -=(1, 2, 3,...} As its applications, some analytic inequalities are established. 展开更多
关键词 symmetric function Schur convex Schur harmonic convex
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SOME INEQUALITIES OF HERMITE-HADAMARD TYPE FOR s-CONVEX FUNCTIONS 被引量:9
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作者 Mohammad W. Alomari Maslina Darus Ugur S. Kirmaci 《Acta Mathematica Scientia》 SCIE CSCD 2011年第4期1643-1652,共10页
In this paper several inequalities of the left-hand side of Hermite-Hadamard’s inequality are obtained for s-convex functions.
关键词 convex function s-convex function Hadamard’s inequality
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THE HADAMARD INEQUALITY FOR CONVEX FUNCTION VIA FRACTIONAL INTEGRALS 被引量:4
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作者 M.E.ZDEMR S.S.DRAGOMIR C.YILDIZ 《Acta Mathematica Scientia》 SCIE CSCD 2013年第5期1293-1299,共7页
In this paper, we establish several inequalities for some differantiable mappings that are connected with the Riemann-Liouville fractional integrals. The analysis used in the proofs is fairly elementary.
关键词 Hadamard's inequality convex functions power-mean inequality Riemann-Liouville fractional integration
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DIFFERENTIABILITY OF CONVEX FUNCTIONS AND ASPLUND SPACES 被引量:3
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作者 程立新 张风 《Acta Mathematica Scientia》 SCIE CSCD 1995年第2期171-179,共9页
Characterizations of differentiability are obtained for continuous convex functions defined on nonempty open convex sets of Banach spaces as a generalization and application of a mumber of mathematicians several years... Characterizations of differentiability are obtained for continuous convex functions defined on nonempty open convex sets of Banach spaces as a generalization and application of a mumber of mathematicians several years effort, and a characteristic theorem is given for Banach spaces which are (weak) Asplund spaces. 展开更多
关键词 convex function DIFFERENTIABILITY BANACH SPACE ASPLUND SPACE
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CERTAIN SUFFICIENT CONDITIONS FOR STARLIKENESS AND CONVEXITY OF MEROMORPHICALLY MULTIVALENT FUNCTIONS 被引量:2
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作者 徐宜会 B.A.FRASIN 刘金林 《Acta Mathematica Scientia》 SCIE CSCD 2013年第5期1300-1304,共5页
In this paper we derive certain sufficient conditions for starlikeness and convexity of order α of meromorphically multivalent functions in the punctured unit disk.
关键词 analytic function meromorphically multivalent function starlike function convex function
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THE FEKETE-SZEG PROBLEM FOR CLOSE-TO-CONVEX FUNCTIONS WITH RESPECT TO THE KOEBE FUNCTION 被引量:1
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作者 Bogumila KOWALCZYK Adam LECKO 《Acta Mathematica Scientia》 SCIE CSCD 2014年第5期1571-1583,共13页
An analytic function f in the unit disk D := {z ∈ C : |z| 〈 1}, standardly normalized, is called close-to-convex with respect to the Koebe function k(z) := z/(1-z)2, z ∈ D, if there exists δ ∈ (-π/2,... An analytic function f in the unit disk D := {z ∈ C : |z| 〈 1}, standardly normalized, is called close-to-convex with respect to the Koebe function k(z) := z/(1-z)2, z ∈ D, if there exists δ ∈ (-π/2,π/2) such that Re {eiδ(1-z)2f′(z)} 〉 0, z ∈ D. For the class C(k) of all close-to-convex functions with respect to k, related to the class of functions convex in the positive direction of the imaginary axis, the Fekete-Szego problem is studied. 展开更多
关键词 Fekete-Szego problem close-to-convex functions close-to-convex functionswith respect to the Koebe function close-to-convex functions with argumentδ functions convex in the positive direction of the imaginary axis
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Convexity for New Integral Operator on k-uniformly p-valent a-convex Functions of Complex Order 被引量:1
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作者 LI Shu-hai MA Li-na A O-en 《Chinese Quarterly Journal of Mathematics》 CSCD 2014年第1期88-96,共9页
In this paper, we obtain the convexity of new general integral operator on some classes of k-uniformly p-valent a-convex functions of complex order. These results extend some known theorems.
关键词 analytic functions p-valently k-uniformly STARLIKE convex integral operator
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Symmetry Function Induced by a Convex Body 被引量:1
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作者 HUANG Long-guang 《Chinese Quarterly Journal of Mathematics》 CSCD 2011年第1期1-6,共6页
This paper shows some properties of symmetry function induced by a convex body in a normal linear space. Some relationships between symmetry function induced by a convex body and Minkowski functional of the convex bod... This paper shows some properties of symmetry function induced by a convex body in a normal linear space. Some relationships between symmetry function induced by a convex body and Minkowski functional of the convex body are presented. 展开更多
关键词 convex body symmetry function CONCAVE Minkowski functional
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Generalizations of Hermite-Hadamard Type Inequalities Involving S-convex Functions 被引量:3
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作者 LIAN Tie-yan TANG Wei 《Chinese Quarterly Journal of Mathematics》 2018年第3期278-286,共9页
Some new Hermite-Hadamard type's integral equations and inequalities are established. The results in [3] and [6] which refined the upper bound of distance between the middle and left of the typical Hermite-Hadamar... Some new Hermite-Hadamard type's integral equations and inequalities are established. The results in [3] and [6] which refined the upper bound of distance between the middle and left of the typical Hermite-Hadamard's integral inequality are generalized. 展开更多
关键词 Hermite-Hadamard's INTEGRAL INEQUALITY s-convex function HSlder's integralinequality
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Strongly Generalized Convex Fuzzy-Valued Function and Its Application in Fuzzy Optimization
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作者 BAI Yu-juan LIU Kun ZHANG Chen 《Chinese Quarterly Journal of Mathematics》 2020年第4期370-387,共18页
Based on the ordering of fuzzy numbers proposed by Goetschel and Voxman,the representations and some properties of strongly preinvex fuzzy-valued function are defined and obtained, several new concepts of strongly mon... Based on the ordering of fuzzy numbers proposed by Goetschel and Voxman,the representations and some properties of strongly preinvex fuzzy-valued function are defined and obtained, several new concepts of strongly monotonicities fuzzy functions are introduced, the relationship among the strongly preinvex, strongly invex and monotonicities under some suitable and appropriate conditions is established and a necessary condition for strongly pseudoinvex functions is given. As an application, the conditions of local optimal solution and global optimal solution in the mathematical programming problem are discussed. 展开更多
关键词 Fuzzy-number-valued functions Strongly generalized convexity Fuzzy optimization
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CURRENTS CARRIED BY THE SUBGRADIENT GRAPHS OF SEMI-CONVEX FUNCTIONS AND APPLICATIONS TO HESSIAN MEASURES
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作者 涂强 陈文艺 《Acta Mathematica Scientia》 SCIE CSCD 2018年第1期315-332,共18页
In this paper we study integer multiplicity rectifiable currents carried by the subgradient (subdifferential) graphs of semi-convex functions on an n-dimensional convex domain, and show a weak continuity theorem wit... In this paper we study integer multiplicity rectifiable currents carried by the subgradient (subdifferential) graphs of semi-convex functions on an n-dimensional convex domain, and show a weak continuity theorem with respect to pointwise convergence for such currents. As an application, the structure theorem of the Lagrangian currents for semi-convex functions is given and the k-Hessian measures are calculated by a different method in terms of currents. 展开更多
关键词 semi-convex function SUBGRADIENT Cartesian current Hessian measure
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On Geodesic E-quasiconvex Functions and Geodesic E-epigraphs
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作者 LIN Qing-ying HUANG Long-guang 《Chinese Quarterly Journal of Mathematics》 2015年第2期184-189,共6页
The definition of geodesic E-quasiconvex functions is established in a geodesic metric space. Meanwhile, the relations of geodesic E-quasiconvex functions, geodesic Econvex functions and geodesic E-almostconvex functi... The definition of geodesic E-quasiconvex functions is established in a geodesic metric space. Meanwhile, the relations of geodesic E-quasiconvex functions, geodesic Econvex functions and geodesic E-almostconvex functions are studied. Furthermore, the notion of E-epigraphs is generalized to geodesic E-epigraphs and a characterization of geodesic E-quasiconvex functions in terms of its geodesic E-epigraphs is considered. 展开更多
关键词 geodesic metric space geodesic E-quasiconvex functions geodesic E-almostconvex functions geodesic E-convex functions geodesic E-epigraphs
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Necessary and Sufficient Conditions in Smooth Programming with Generalized Convexity 被引量:1
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作者 孙清滢 叶留青 《Chinese Quarterly Journal of Mathematics》 CSCD 2000年第4期33-37,共5页
Hanson and Mond have grven sets of necessary and sufficient conditions for optimality in constrained optimization by introducing classes of generalized functions, called type Ⅰ functions. Recently, Bector definded un... Hanson and Mond have grven sets of necessary and sufficient conditions for optimality in constrained optimization by introducing classes of generalized functions, called type Ⅰ functions. Recently, Bector definded univex functions, a new class of functions that unifies several concepts of generalized convexity. In this paper, additional conditions are attached to the Kuhn Tucker conditions giving a set of conditions which are both necessary and sufficient for optimality in constrained optimization, under appropriate constraint qualifications. 展开更多
关键词 necessary and sufficient conditions generalized convexity nonlinear programming multiobjective programming type functions
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s-对数凸函数的一些性质及其应用
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作者 何晶晶 江慎铭 《南昌航空大学学报(自然科学版)》 2025年第1期60-65,共6页
首先,给出了-对数凸(凹)s函数的性质和判定定理;其次,给出了一些新型的积分不等式并且加以证明;最后,给s出了-对数凸(凹)函数在实际计算中的一些运用。
关键词 -对数凸(凹)函数 性质 判定定理 积分不等式
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UFMC系统中融合窗函数的干扰分析与最优窗设计
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作者 谢禹 闻建刚 +1 位作者 倪郑威 华惊宇 《应用科学学报》 北大核心 2025年第2期257-273,共17页
本文首先在理论上研究了存在载波频率偏移(carrier frequency offset, CFO)的加窗通用滤波多载波(universal filtered multi-carrier, UFMC)系统信号和干扰分析,推导了系统信干噪比(signal-to-interference-plus-noise ratio, SINR)表达... 本文首先在理论上研究了存在载波频率偏移(carrier frequency offset, CFO)的加窗通用滤波多载波(universal filtered multi-carrier, UFMC)系统信号和干扰分析,推导了系统信干噪比(signal-to-interference-plus-noise ratio, SINR)表达式;然后基于误符号率(symbol error rate, SER)与SINR的关系式,构建了以最大化子载波SINR几何平均为目标的窗函数设计最优化模型;其次采用逐次凸近似算法求解了该最优化问题,得到了最优窗函数;再次通过仿真对比了不同窗函数下系统的SER。仿真结果表明,窗函数可以有效降低CFO导致的UFMC系统干扰。与传统窗函数相比,本文设计的最优窗函数具有更好的信噪比适用范围,并且能够显著改善系统SER。 展开更多
关键词 通用滤波多载波 载波频率偏移 窗函数 逐次凸近似 误符号率
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MONOTONICITY,CONVEXITY AND INEQUALITIES INVOLVING THE GENERALIZED ELLIPTIC INTEGRALS 被引量:5
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作者 Miaokun WANG Wen ZHANG Yuming CHU 《Acta Mathematica Scientia》 SCIE CSCD 2019年第5期1440-1450,共11页
We establish the monotonicity and convexity properties for several special functions involving the generalized elliptic integrals, and present some new analytic inequalities.
关键词 Gaussian HYPERGEOMETRIC function generalized ELLIPTIC INTEGRALS convexITY inequality
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ON A CLASS OF ANALYTIC FUNCTIONS RELATED TO CONIC DOMAINS AND ASSOCIATED WITH CARLSON-SHAFFER OPERATOR 被引量:4
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作者 S.Hussain J.Sokól 《Acta Mathematica Scientia》 SCIE CSCD 2012年第4期1399-1407,共9页
Making use of the Carlson-Shaffer convolution operator, we introduce and study a new class of analytic functions related to conic domains. The main object of this paper is to investigate inclusion relations, coefficie... Making use of the Carlson-Shaffer convolution operator, we introduce and study a new class of analytic functions related to conic domains. The main object of this paper is to investigate inclusion relations, coefficient bound for this class. We also show that this class is closed under convolution with a convex function. Some applications are also discussed. 展开更多
关键词 Hadamard product (or convolution) differential subordination Carlson-Shaffer operator k-starlike functions k-uniformly convex function
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SANDWICH-TYPE RESULTS FOR A CLASS OF CONVEX INTEGRAL OPERATORS 被引量:1
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作者 Teodor Bulboac 《Acta Mathematica Scientia》 SCIE CSCD 2012年第3期989-1001,共13页
Let H(U) be the space of analytic functions in the unit disk U. For the integral operator
关键词 Analytic function starlike and convex function differential operator differential subordination
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ON THE PRODUCT OF GTEAUX DIFFERENTIABILITY LOCALLY CONVEX SPACES 被引量:1
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作者 沈喜生 程立新 《Acta Mathematica Scientia》 SCIE CSCD 2005年第3期395-400,共6页
A locally convex space is said to be a Gateaux differentiability space (GDS) provided every continuous convex function defined on a nonempty convex open subset D of the space is densely Gateaux differentiable in .D.Th... A locally convex space is said to be a Gateaux differentiability space (GDS) provided every continuous convex function defined on a nonempty convex open subset D of the space is densely Gateaux differentiable in .D.This paper shows that the product of a GDS and a family of separable Prechet spaces is a GDS,and that the product of a GDS and an arbitrary locally convex space endowed with the weak topology is a GDS. 展开更多
关键词 convex function locally convex space Gateaux differentiability space
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A Note on the Characteristic Function of Mermophic Function Derivative
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作者 DOU Pan-ying XIAO Ze-chang 《Chinese Quarterly Journal of Mathematics》 CSCD 北大核心 2007年第4期552-557,共6页
In this paper, the characteristic function of the derivative of meromorphic function is studied. A expression of characteristic function T(r, f') is given.
关键词 meromorphic function characteristic function convex function
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