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检索条件"主题词=Schur-Convex Functions"
14 条 记 录,以下是1-10 订阅
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Strong schur-convexity of the Integral Mean
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RESULTS IN MATHEMATICS 2023年 第2期78卷 1-12页
作者: Adamek, Miroslaw Bakula, Milica Klaricic Nikodem, Kazimierz Univ Bielsko Biala Dept Math Ul Willowa 2 PL-43309 Bielsko Biala Poland Univ Split Fac Sci Rudera Boskovica 33 Split 21000 Croatia
The strong schur-convexity of the integral mean as well as of the left and right gaps in the Hermite-Hadamard inequality for strongly convex functions are proved. An useful characterization of strongly schur convex fu... 详细信息
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New Versions of Uniformly convex functions via Quadratic Complete Homogeneous Symmetric Polynomials
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MEDITERRANEAN JOURNAL OF MATHEMATICS 2023年 第5期20卷 279-279页
作者: Lachescu, Geanina Maria Malin, Maria Roventa, Ionel Univ Craiova Dept Math AI Cuza St 13 Craiova 200585 Romania
We introduce new versions of uniformly convex functions, namely h(d) strongly (weaker) convex functions. Based on the positivity of complete homogeneous symmetric polynomials with even degree, recently studied in Rove... 详细信息
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On the Design of Amplify-and-Forward MIMO-OFDM Relay Systems With QoS Requirements Specified as schur-convex functions of the MSEs
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IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY 2013年 第4期62卷 1871-1877页
作者: Sanguinetti, Luca D'Amico, Antonio A. Rong, Yue Univ Pisa Dept Informat Engn I-56126 Pisa Italy Curtin Univ Technol Dept Elect & Comp Engn Bentley WA 6102 Australia
In this paper, we focus on the design of linear and nonlinear architectures in amplify-and-forward multiple-input-multiple-output (MIMO) orthogonal frequency-division multiplexing (OFDM) relay networks in which differ... 详细信息
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OPTIMIZATION RESULTS FOR A GENERALIZED COUPON COLLECTOR PROBLEM
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JOURNAL OF APPLIED PROBABILITY 2016年 第2期53卷 622-629页
作者: Anceaume, Emmanuelle Busnel, Yann Schulte-Geers, Ernst Sericola, Bruno CNRS Campus Beaulieu F-35042 Rennes France Ensai Campus Ker LannBP 37203 F-35172 Bruz France BSI Godesberger Allee 185-189 D-53175 Bonn Germany Inria Campus Beaulieu F-35042 Rennes France
In this paper we study a generalized coupon collector problem, which consists of analyzing the time needed to collect a given number of distinct coupons that are drawn from a set of coupons with an arbitrary probabili... 详细信息
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New bounds of degree-based topological indices for some classes of c-cyclic graphs
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DISCRETE APPLIED MATHEMATICS 2015年 184卷 62-75页
作者: Bianchi, Monica Cornaro, Alessandra Palacios, Jose Luis Torriero, Anna Catholic Univ Dept Math & Econometr Milan Italy Univ New Mexico Dept Elect & Comp Engn Albuquerque NM 87131 USA
Making use of a majorization technique for a suitable class of graphs, we derive upper and lower bounds for some topological indices depending on the degree sequence over all vertices, namely the first general Zagreb ... 详细信息
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A majorization method for localizing graph topological indices
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DISCRETE APPLIED MATHEMATICS 2013年 第16-17期161卷 2731-2739页
作者: Bianchi, Monica Cornaro, Alessandra Torriero, Anna Univ Cattolica Sacro Cuore Dept Math & Econometr I-20123 Milan Italy
This paper presents a unified approach for localizing some relevant graph topological indices via majorization techniques. Using this method, we derive old and new bounds. Numerical examples are provided showing how c... 详细信息
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Bounds for the Kirchhoff index via majorization techniques
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JOURNAL OF MATHEMATICAL CHEMISTRY 2013年 第2期51卷 569-587页
作者: Bianchi, Monica Cornaro, Alessandra Luis Palacios, Jose Torriero, Anna Catholic Univ Dept Math & Econometr Milan Italy Univ Simon Bolivar Dept Sci Comp & Stat Caracas Venezuela
Using a majorization technique that identifies the maximal and minimal vectors of a variety of subsets of R-n, we find upper and lower bounds for the Kirchhoff index K(G) of an arbitrary simple connected graph G that ... 详细信息
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NON-convexITY OF THE DIMENSION FUNCTION FOR SIERPINSKI PEDAL TRIANGLES
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FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY 2010年 第2期18卷 191-195页
作者: Ding, Jiu Tang, Yifa Univ So Mississippi Dept Math Hattiesburg MS 39406 USA Chinese Acad Sci State Key Lab Sci & Engn Comp Acad Math & Syst Sci Beijing 100190 Peoples R China
We disprove the conjecture of the paper by Zhang et al.(1) on the schur-convexity of the dimension function for the family of Sierpinski pedal triangles. We also show that this function is not convex and the related a... 详细信息
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On the minimization of multinomial tails and the Gupta-Nagel conjecture
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JOURNAL OF MULTIVARIATE ANALYSIS 2005年 第1期94卷 70-108页
作者: Gastaldi, T Univ Roma La Sapienza Dipartimento Stat Probabil & Stat Applicate I-00185 Rome Italy
This paper is primarily concerned with the open problem of minimizing the lower tail of the multmomial distribution. During the study of that specific problem, we have developed an approach which reveals itself useful... 详细信息
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Algebraic theory of optimal filterbanks
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IEEE TRANSACTIONS ON SIGNAL PROCESSING 2003年 第2期51卷 442-457页
作者: Jahromi, OS Francis, BA Kwong, RH Univ Toronto Dept Elect & Comp Engn Toronto ON M5S 3G4 Canada
We introduce an optimality theory for finite impulse response (FIR) filterbanks using a general algebraic point of view. We consider an admissible set L of FIR filterbanks and use scalability as the main notion based ... 详细信息
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