期刊文献+
共找到21篇文章
< 1 2 >
每页显示 20 50 100
THE SCHUR HARMONIC CONVEXITY FOR A CLASS OF SYMMETRIC FUNCTIONS 被引量:13
1
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
下载PDF
Hermite interpolation and its numerical differentiation formula involving symmetric functions 被引量:1
2
作者 BAI Hong-huan XU Ai-min 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2009年第3期309-314,共6页
By utilizing symmetric functions,this paper presents explicit representations for Hermite interpolation and its numerical differentiation formula.And the corresponding error estimates are also provided.
关键词 Hermite interpolation numerical differentiation elementary symmetric function complete symmetric function
下载PDF
INITIAL COEFFICIENT ESTIMATES FOR SOME SUBCLASSES OF M-FOLD SYMMETRIC BI-UNIVALENT FUNCTIONS 被引量:2
3
作者 H.M.SRIVASTAVA S.GABOURY F.GHANIM 《Acta Mathematica Scientia》 SCIE CSCD 2016年第3期863-871,共9页
In the present investigation, we consider two new general subclasses B∑m(T, λ; α)and B^∑m (τ λ;β) of Em consisting of analytic and m-fold symmetric bi-univalent functions in the open unit disk U. For functi... In the present investigation, we consider two new general subclasses B∑m(T, λ; α)and B^∑m (τ λ;β) of Em consisting of analytic and m-fold symmetric bi-univalent functions in the open unit disk U. For functions belonging to the two classes introduced here, we derive non-sharp estimates on the initial coefficients [a-~+ll and │a2+1│. Several connections to some of the earlier known results are also pointed out. 展开更多
关键词 analytic functions bi-univalent functions m-Fold symmetric functions m-Fold symmetric bi-univalent functions
下载PDF
Schur Convexity for Two Classes of Symmetric Functions and Their Applications 被引量:1
4
作者 Mingbao SUN Nanbo CHEN +1 位作者 Songhua LI Yinghui ZHANG 《Chinese Annals of Mathematics,Series B》 SCIE CSCD 2014年第6期969-990,共22页
respectively, where r = 1, 2, … , n, and il, i2, … , is are positive integers. In this paper, the Schur convexity of Fn(X, r) and Gn(x, r) are discussed. As applications, by a bijective transformation of indepen... respectively, where r = 1, 2, … , n, and il, i2, … , is are positive integers. In this paper, the Schur convexity of Fn(X, r) and Gn(x, r) are discussed. As applications, by a bijective transformation of independent variable for a Schur convex function, the authors obtain Schur convexity for some other symmetric functions, which subsumes the main results in recent literature; and by use of the theory of majorization establish some inequalities. In particular, the authors derive from the results of this paper the Weierstrass inequalities and the Ky Fan's inequality, and give a generalization of Safta's conjecture in the n-dimensional space and others. 展开更多
关键词 symmetric function Schur convexity Inequal!ty
原文传递
Generalized Numerical Radius of Real Quaternion Matrices with Symmetric Function
5
作者 夏铁成 张鸿庆 《Chinese Quarterly Journal of Mathematics》 CSCD 2000年第3期34-38,共5页
In the paper the generalized numerical radiuses of real quaternion matrices with symmetric function are defined and theirs inequalities are given.
关键词 numerical radius generalized numerical radius symmetric function
下载PDF
Quantum fields presentation and generating functions of symplectic Schur functions and symplectic universal characters
6
作者 Denghui Li Fei Wang Zhaowen Yan 《Chinese Physics B》 SCIE EI CAS CSCD 2022年第8期197-206,共10页
This paper is concerned with construction of quantum fields presentation and generating functions of symplectic Schur functions and symplectic universal characters.The boson-fermion correspondence for these symmetric ... This paper is concerned with construction of quantum fields presentation and generating functions of symplectic Schur functions and symplectic universal characters.The boson-fermion correspondence for these symmetric functions have been presented.In virtue of quantum fields,we derive a series of infinite order nonlinear integrable equations,namely,universal character hierarchy,symplectic KP hierarchy and symplectic universal character hierarchy,respectively.In addition,the solutions of these integrable systems have been discussed. 展开更多
关键词 quantum fields generating functions integrable systems symmetric functions boson–fermion correspondence
下载PDF
Walsh Spectrum Properties of Rotation Symmetric Boolean Function 被引量:1
7
作者 WANG Yongjuan HAN Wenbao LI Shiqu 《Wuhan University Journal of Natural Sciences》 CAS 2006年第6期1862-1864,共3页
Rotation symmetric function was presented by Pieprzyk. The algebraic configuration of rotation symmetric(RotS) function is special. For a Rots n variables function f(x1, x2, …, xn) we have f(ρn^k (x1, x2, …x... Rotation symmetric function was presented by Pieprzyk. The algebraic configuration of rotation symmetric(RotS) function is special. For a Rots n variables function f(x1, x2, …, xn) we have f(ρn^k (x1, x2, …xn))=f(x1, x2, …, xn) for k=0, 1, …, n-1. In this paper, useing probability method we find that when the parameters of RotS function is under circular translation of indices, its walsh spectrum is invariant. And we prove the result is both sufficient and necessary. 展开更多
关键词 rotation symmetric function rotation shift Walsh spectra
下载PDF
Novel Quantum Algorithms to Minimize Switching Functions Based on Graph Parti
8
作者 Peng Gao Marek Perkowski +1 位作者 Yiwei Li Xiaoyu Song 《Computers, Materials & Continua》 SCIE EI 2022年第3期4545-4561,共17页
After Google reported its realization of quantum supremacy,Solving the classical problems with quantum computing is becoming a valuable research topic.Switching function minimization is an important problem in Electro... After Google reported its realization of quantum supremacy,Solving the classical problems with quantum computing is becoming a valuable research topic.Switching function minimization is an important problem in Electronic Design Automation(EDA)and logic synthesis,most of the solutions are based on heuristic algorithms with a classical computer,it is a good practice to solve this problem with a quantum processer.In this paper,we introduce a new hybrid classic quantum algorithm using Grover’s algorithm and symmetric functions to minimize small Disjoint Sum of Product(DSOP)and Sum of Product(SOP)for Boolean switching functions.Our method is based on graph partitions for arbitrary graphs to regular graphs,which can be solved by a Grover-based quantum searching algorithm we proposed.The Oracle for this quantum algorithm is built from Boolean symmetric functions and implemented with Lattice diagrams.It is shown analytically and verified by simulations on a quantum simulator that our methods can find all solutions to these problems. 展开更多
关键词 Boolean symmetric function lattice diagrams Grover’s searching algorithm
下载PDF
On the 2~m-variable symmetric Boolean functions with maximum algebraic immunity 被引量:12
9
作者 QU LongJiang LI Chao 《Science in China(Series F)》 2008年第2期120-127,共8页
The properties of the 2m-variable symmetric Boolean functions with maximum al- gebraic immunity are studied in this paper. Their value vectors, algebraic normal forms, and algebraic degrees and weights are all obtaine... The properties of the 2m-variable symmetric Boolean functions with maximum al- gebraic immunity are studied in this paper. Their value vectors, algebraic normal forms, and algebraic degrees and weights are all obtained. At last, some necessary conditions for a symmetric Boolean function on even number variables to have maximum algebraic immunity are introduced. 展开更多
关键词 algebraic immunity algebraic attack symmetric Boolean function
原文传递
A Class of Rotation Symmetric Boolean Functions with Optimum Algebraic Immunity 被引量:4
10
作者 LI Chunlei ZENG Xiangyong +1 位作者 SU Wei HU Lei 《Wuhan University Journal of Natural Sciences》 CAS 2008年第6期702-706,共5页
For an odd integer n ≥ 7, this paper presented a class of n-variable rotation symmetric Boolean functions (RSBFs) with optimum algebraic immunity. The nonlinearity of the constructed functions is determined.
关键词 rotation symmetric Boolean functions(RSBFs) algebraic immunity NONLINEARITY BALANCEDNESS Krawtchouk polynomial
原文传递
RESULTS ON PERMUTATION SYMMETRIC BOOLEAN FUNCTIONS 被引量:2
11
作者 ZHANG Yanjuan DENG Yingpu 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2013年第2期302-312,共11页
This paper provides a systematic method on the enumeration of various permutation symmetric Boolean functions. The results play a crucial role on the search of permutation symmetric Boolean functions with good cryptog... This paper provides a systematic method on the enumeration of various permutation symmetric Boolean functions. The results play a crucial role on the search of permutation symmetric Boolean functions with good cryptographic properties. The proposed method is algebraic in nature. As a by-product, the authors correct and generalize the corresponding results of St^nic~ and Maitra (2008). Further, the authors give a complete classification of block-symmetric bent functions based on the results of Zhao and Li (2006), and the result is the only one classification of a certain class of permutation symmetric bent functions after the classification of symmetric bent functions proposed by Savicky (1994). 展开更多
关键词 Bent functions block-symmetric ENUMERATION permutation symmetric Boolean functions rotation symmetric.
原文传递
Extensions and Refinements of Adamovic's Inequality
12
作者 SHIHuan-nan LIDa-mao 《Chinese Quarterly Journal of Mathematics》 CSCD 2004年第1期35-40,共6页
In this article, by means of the theory of majorization, Adamovic's inequality is extended to the cases of the general elementary symmetric functions and its duals, and the refined and reversed forms are also give... In this article, by means of the theory of majorization, Adamovic's inequality is extended to the cases of the general elementary symmetric functions and its duals, and the refined and reversed forms are also given. As applications, some new inequalities for simplex are established. 展开更多
关键词 Adamovic's inequality elementary symmetric function majorization SIMPLEX
下载PDF
Exponential Generalization of Newman's Inequality and Klamkin's Inequality
13
作者 石焕南 《Northeastern Mathematical Journal》 CSCD 2005年第4期431-438,共8页
Exponential generalizations of Newman's inequality and Klamkin's inequality are established by the Wang Wan-lan's inequality, and they are extended to the cases involving general elementary symmetric functions. As ... Exponential generalizations of Newman's inequality and Klamkin's inequality are established by the Wang Wan-lan's inequality, and they are extended to the cases involving general elementary symmetric functions. As an application, some new inequalities for a simplex are established. In addition, an open problem is posed. 展开更多
关键词 Newman's inequality Klamkin's inequality Wang Wan-lan's inequality elementary symmetric function EXPONENT SIMPLEX
下载PDF
Tau functions of the charged free bosons
14
作者 Naihuan Jing Zhijun Li 《Science China Mathematics》 SCIE CSCD 2020年第11期2157-2176,共20页
We study bosonic tau functions in relation with the charged free bosonic fields.It is proved that up to a constant the only tau function in the Fock space M is the vacuum vector,and some tau functions are given in the... We study bosonic tau functions in relation with the charged free bosonic fields.It is proved that up to a constant the only tau function in the Fock space M is the vacuum vector,and some tau functions are given in the completion M by using Schur functions.We also give a new proof of Borchardt’s identity and obtain several q-series identities by using the boson-boson correspondence. 展开更多
关键词 tau functions boson-boson correspondence vertex operator algebras symmetric functions
原文传递
Some results on the algebraic immunity of Boolean functions 被引量:1
15
作者 XU Li-qing CHEN hao 《The Journal of China Universities of Posts and Telecommunications》 EI CSCD 2011年第2期102-105,共4页
From the motivation of algebraic attacks on stream and block ciphers,the concept of algebraic immunity(AI) of a Boolean function was introduced and studied extensively.High algebraic immunity is a necessary conditio... From the motivation of algebraic attacks on stream and block ciphers,the concept of algebraic immunity(AI) of a Boolean function was introduced and studied extensively.High algebraic immunity is a necessary condition for resisting algebraic attacks.In this paper,we give some lower bounds on the algebraic immunity of Boolean functions.The results are applied to give lower bounds on the AI of symmetric Boolean functions and rotation symmetric Boolean functions.Some balanced rotation symmetric Boolean functions with their AI near the maximum possible value「n/2」are constructed. 展开更多
关键词 algebraic attack Boolean function AI symmetric Boolean function rotation symmetric Boolean function
原文传递
Kernel Function-Based Primal-Dual Interior-Point Methods for Symmetric Cones Optimization
16
作者 ZHAO Dequan ZHANG Mingwang 《Wuhan University Journal of Natural Sciences》 CAS 2014年第6期461-468,共8页
In this paper, we present a large-update primal-dual interior-point method for symmetric cone optimization(SCO) based on a new kernel function, which determines both search directions and the proximity measure betwe... In this paper, we present a large-update primal-dual interior-point method for symmetric cone optimization(SCO) based on a new kernel function, which determines both search directions and the proximity measure between the iterate and the center path. The kernel function is neither a self-regular function nor the usual logarithmic kernel function. Besides, by using Euclidean Jordan algebraic techniques, we achieve the favorable iteration complexity O( √r(1/2)(log r)^2 log(r/ ε)), which is as good as the convex quadratic semi-definite optimization analogue. 展开更多
关键词 symmetric cones optimization Kernel function Interior-point method polynomial complexity
原文传递
The research and progress of the enumeration of lattice paths
17
作者 Jishe FENG Xiaomeng WANG +1 位作者 Xiaolu GAO Zhuo PAN 《Frontiers of Mathematics in China》 SCIE CSCD 2022年第5期747-766,共20页
The enumeration of lattice paths is an important counting model in enumerative combinatorics.Because it can provide powerful methods and technical support in the study of discrete structural objects in different disci... The enumeration of lattice paths is an important counting model in enumerative combinatorics.Because it can provide powerful methods and technical support in the study of discrete structural objects in different disciplines,it has attracted much attention and is a hot research field.In this paper,we summarize two kinds of the lattice path counting models that are single lattice paths and family of nonintersecting lattice paths and their applications in terms of the change of dimensions,steps,constrained conditions,the positions of starting and end points,and so on.(1)The progress of classical lattice path such as Dyck lattice is introduced.(2)A method to study the enumeration of lattice paths problem by generating function is introduced.(3)Some methods of studying the enumeration of lattice paths problem by matrix are introduced.(4)The family of lattice paths problem and some counting methods are introduced.(5)Some applications of family of lattice paths in symmetric function theory are introduced,and a related open problem is proposed. 展开更多
关键词 Enumeration of lattice paths generating function MATRIX family of lattice paths symmetric function
原文传递
Recursions in Calogero-Sutherland Model Based on Virasoro Singular Vectors
18
作者 吴剑锋 续莺莺 喻明 《Communications in Theoretical Physics》 SCIE CAS CSCD 2012年第5期743-758,共16页
The present work is much motivated by finding an explicit way in the construction of the Jack symmetric function,which is the spectrum generating function for the Calogero-Sutherland (CS) model.To accomplish this work... The present work is much motivated by finding an explicit way in the construction of the Jack symmetric function,which is the spectrum generating function for the Calogero-Sutherland (CS) model.To accomplish this work,the hidden Virasoro structure in the CS model is much explored.In particular,we found that the Virasoro singular vectors form a skew hierarchy in the CS model.Literally,skew is analogous to coset,but here specifically refer to the operation on the Young tableaux.In fact,based on the construction of the Virasoro singular vectors,this hierarchical structure can be used to give a complete construction of the CS states,i.e.the Jack symmetric functions,recursively.The construction is given both in operator formalism as well as in integral representation.This new integral representation for the Jack symmetric functions may shed some insights on the spectrum constructions for the other integrable systems. 展开更多
关键词 Calogero-Sutherland model Jack symmetric function recursion relations integral representation
原文传递
Bonding of the chain structure for novel boranes B_(3k+)H_(5k+p+3)^-
19
作者 ZHONG, Shi-Jun WANG, Yin-Gui ZHANG, Qian-ErState Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Science, Fuzhou, Fujian 350002, China.Department of Chemistry, and Institute of Physical Chemistry, Xiamen University, Xiamen, Fujian 361005, China 《Chinese Journal of Chemistry》 SCIE CAS CSCD 1994年第4期289-294,共6页
The molecular orbitals obtained from conventional quantum chemistry calculations, are expressed in terms of symmetrized valence bond functions of fragment, and a direct picture of chemical bonding can be drawn easily.... The molecular orbitals obtained from conventional quantum chemistry calculations, are expressed in terms of symmetrized valence bond functions of fragment, and a direct picture of chemical bonding can be drawn easily. This method is utilized, together with extended Huckel calculations, to interpret the bonding properties of a centipede-like chain structure for novel laser-producing boranes B3k+pH5k+p+3- which is constructed from the repeated unit B3H5 linked to each other by three B-H-B bonds. 展开更多
关键词 Symmetrized valence bond function bridge bond novel boranes.
原文传递
Distribution Estimation with Smoothed Auxiliary Information
20
作者 Xu Liu Ahmad Ishfaq 《Acta Mathematicae Applicatae Sinica》 SCIE CSCD 2011年第1期167-176,共10页
Distribution estimation is very important in order to make statistical inference for parameters or its functions based on this distribution. In this work we propose an estimator of the distribution of some variable wi... Distribution estimation is very important in order to make statistical inference for parameters or its functions based on this distribution. In this work we propose an estimator of the distribution of some variable with non-smooth auxiliary information, for example, a symmetric distribution of this variable, A smoothing technique is employed to handle the non-differentiable function. Hence, a distribution can be estimated based on smoothed auxiliary information. Asymptotic properties of the distribution estimator are derived and analyzed. The distribution estimators based on our method are found to be significantly efficient than the corresponding estimators without these auxiliary information. Some simulation studies are conducted to illustrate the finite sample performance of the proposed estimators. 展开更多
关键词 Auxiliary information Empirical likelihood Estimating equations Smoothed estimating function symmetric distribution
原文传递
上一页 1 2 下一页 到第
使用帮助 返回顶部