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LU Invariants and Canonical Forms and SLOCC Classification of Pure 3-Qubit States 被引量:2
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作者 DI Yao-Min Cao Ya 《Communications in Theoretical Physics》 SCIE CAS CSCD 2006年第4期596-600,共5页
In this paper the entanglement of pure 3-qubit states is discussed. The local unitary (LU) polynomial invariants that are closely related to the canonical forms are constructed and the relations of the coefficients ... In this paper the entanglement of pure 3-qubit states is discussed. The local unitary (LU) polynomial invariants that are closely related to the canonical forms are constructed and the relations of the coefficients of the canonical forms are given. Then the stochastic local operations and classlcal communication (SLOCC) classification of the states are discussed on the basis of the canonical forms, and the symmetric canonical form of the states without 3-tangle is discussed. Finally, we give the relation between the LU polynomial invariants and SLOCC classification. 展开更多
关键词 3-qubit state canonical form LU invariant SLOCC classification
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CONTROLLABILITY CANONICAL FORM FOR NONLINEAR CONTROL SYSTEMS 被引量:2
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作者 Li Wenlin and Gao WeibingBeijing Universtiy of Aeronautics and Astronautics 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 1990年第3期204-215,共12页
General nonlinear control systems are studied in this paper with the goal to transform them into the so-called controllability canonteal form via state transformation only. The conditions of transformability are given... General nonlinear control systems are studied in this paper with the goal to transform them into the so-called controllability canonteal form via state transformation only. The conditions of transformability are given for both single input and multiple input cases. Besides, by an algebraic approach the procedure for constructing the state transformation is established. This paper is formulated in the framework of calculus rather than differential geometry approach. 展开更多
关键词 CONTROLLABILITY canonical form FOR NONLINEAR CONTROL SYSTEMS form
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GH-CONGRUENCE CANONICAL FORM OF QUATERNION MATRIX AND SIMULTANEOUS DIAGONALIZATION OF MATRICES 被引量:1
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作者 Zhang Jinchuan(Dept.of Math.,Quanzhou Normal college,Quanzhou,Fujian,362000) 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 2000年第S1期122-128,共7页
In this paper,the GH-congruence canonical forms of positive semidefinite and definte inite and definite(need not be self-conjugate)quaternion matrices are given,and a neccessary and sufficientcondition of GH-congruenc... In this paper,the GH-congruence canonical forms of positive semidefinite and definte inite and definite(need not be self-conjugate)quaternion matrices are given,and a neccessary and sufficientcondition of GH-congruence for two positive semidifinite(definite)quaternion matrices isgiven also.Then simultaneous GH-congruence reduced forms for two self-conjugate matri-ces and some result about the simultaneous GH-congruence diagonalization of quaternionmatrices are obtained. 展开更多
关键词 GH-CONGRUENCE canonical form OF QUATERNION MATRIX AND SIMULTANEOUS DIAGONALIZATION OF MATRICES REAL EGL PBP form
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AN ALGORITHM FOR JORDAN CANONICAL FORM OF A QUATERNION MATRIX 被引量:3
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作者 姜同松 魏木生 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 2003年第1期43-50,共8页
In this paper, we first introduce a concept of companion vector, and studythe Jordan canonical forms of quaternion matrices by using the methods of complex representation and companion vector, not only give out a prac... In this paper, we first introduce a concept of companion vector, and studythe Jordan canonical forms of quaternion matrices by using the methods of complex representation and companion vector, not only give out a practical algorithm for Jordancanonical form J of a quaternion matrix A, but also provide a practical algorithm forcorresponding nonsingular matrix P with P- 1 AP = J. 展开更多
关键词 线性代数 四元数矩阵 约当标准型 运算法则 非奇异矩阵
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The Construction of Locally D-Optimal Designs by Canonical Forms to an Extension for the Logistic Model
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作者 Irene García Camacha Gutiérrez Raúl Martín Martín 《Applied Mathematics》 2014年第5期824-831,共8页
Logistic regression models for binary response problems are present in a wide variety of industrial, biological, social and medical experiments;therefore, optimum designs are a valuable tool for experimenters, leading... Logistic regression models for binary response problems are present in a wide variety of industrial, biological, social and medical experiments;therefore, optimum designs are a valuable tool for experimenters, leading to estimators of parameters with minimum variance. Our interest in this contribution is to provide explicit formulae for the D-optimal designs as a function of the unknown parameters for the logistic model where q is an indicator variable. We have considered an experiment based on the dose-response to a fly insecticide in which males and females respond in different ways, proposed in Atkinson et al. (1995) [1]. To find the D-optimal designs, this problem has been reduced to a canonical form. 展开更多
关键词 BINOMIAL RESPONSE D-Optimal Design canonical form
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Form Invariance of Raitzin's Canonical Equations of Relativistic Mechanical System
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作者 ZHAOShu-Hong SUNFu-Tian QIAOYong-Fen 《Communications in Theoretical Physics》 SCIE CAS CSCD 2005年第4期607-610,共4页
A form invariance of Raitzin's canonical equations of relativistie mechanical system is studied. First, the Raitzin's canonical equations of the system are established. Next, the definition and criterion of th... A form invariance of Raitzin's canonical equations of relativistie mechanical system is studied. First, the Raitzin's canonical equations of the system are established. Next, the definition and criterion of the form invariance in the system under infinitesimal transformations of groups are given. Finally,the relation between the form invariance and the conserved quantity of the system is obtained and an example is given to illustrate the application of the result. 展开更多
关键词 form in variance conserved quantity Raitzin's canonical equation relativistic holonomic system
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ON THE DECOMPOSITION OF COMPLEX VECTOR SPACES AND THE JORDAN CANONICAL FORM OF COMPLEX LINEAR TRANSFORMATIONS
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作者 肖衡 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI 1994年第11期997-1003,共7页
New objects characterizing the structure of complex linear transformations areintroduced. These new objects yield a new result for the decomposition of complexvector spaces relative to complex lrnear transformations a... New objects characterizing the structure of complex linear transformations areintroduced. These new objects yield a new result for the decomposition of complexvector spaces relative to complex lrnear transformations and provide all Jordan basesby which the Jordan canonical form is constructed. Accordingly, they can result in thecelebrated Jordan theorem and the third decomposition theorem of space directly. and,moreover, they can give a new deep insight into the exquisite and subtle structure ofthe Jordan form. The latter indicates that the Jordan canonical form of a complexlinear transformation is an invariant structure associated with double arbitrary. choices. 展开更多
关键词 complex vector space complex linear transformation. decompo-sition theorems. Jordan canonical form
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Quasi-Rational Canonical Forms of a Matrix over a Number Field
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作者 Zhudeng Wang Qing Wang Nan Qin 《Advances in Linear Algebra & Matrix Theory》 2018年第1期1-10,共10页
A matrix is similar to Jordan canonical form over the complex field and the rational canonical form over a number field, respectively. In this paper, we further study the rational canonical form of a matrix over any n... A matrix is similar to Jordan canonical form over the complex field and the rational canonical form over a number field, respectively. In this paper, we further study the rational canonical form of a matrix over any number field. We firstly discuss the elementary divisors of a matrix over a number field. Then, we give the quasi-rational canonical forms of a matrix by combining Jordan and the rational canonical forms. Finally, we show that a matrix is similar to its quasi-rational canonical forms over a number field. 展开更多
关键词 MATRIX Jordan canonical form Rational canonical form Quasi-Rational canonical form
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A Minimality of the Rational Canonical Form
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作者 Heguo Liu Honglian Zhang 《Advances in Linear Algebra & Matrix Theory》 2019年第4期83-88,共6页
The rational canonical form theorem is very essential basic result of matrix theory, which has been proved by different methods in the literature. In this note, we provide an effcient direct proof, from which the mini... The rational canonical form theorem is very essential basic result of matrix theory, which has been proved by different methods in the literature. In this note, we provide an effcient direct proof, from which the minimality for the decomposition of the rational canonical form can be found. 展开更多
关键词 MINIMAL POLYNOMIAL RATIONAL canonical form Cyclic SUBSPACE
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Notes on Canonical Forms of Integrable Vector Nonlinear Schr?dinger Systems
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作者 Kui Chen Da-Jun Zhang 《Chinese Physics Letters》 SCIE CAS CSCD 2017年第10期5-7,共3页
We present canonical forms of integrable vector nonlinear Sehr6dinger systems. Mathematically, it is enough to focus on these canonical forms.
关键词 NLS Notes on canonical forms of Integrable Vector Nonlinear Schr?dinger Systems
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ORDERED ANALYTIC REPRESENTATION OF PDES BY HAMILTONIAN CANONICAL SYSTEM
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作者 ZhengYu ChenYong 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2002年第2期177-182,共6页
Based on the method of symplectic geometry and variational calculation,the method for some PDEs to be ordered and analytically represented by Hamiltonian canonical system is discussed.Meanwhile some related necessar... Based on the method of symplectic geometry and variational calculation,the method for some PDEs to be ordered and analytically represented by Hamiltonian canonical system is discussed.Meanwhile some related necessary and sufficient conditions are obtained 展开更多
关键词 symplectic form Hamiltonian canonical system variational calculation ordered anlytic rep- resentation potential operator
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T-Jordan Canonical Form and T-Drazin Inverse Based on the T-Product
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作者 Yun Miao Liqun Qi Yimin Wei 《Communications on Applied Mathematics and Computation》 2021年第2期201-220,共20页
In this paper,we investigate the tensor similarity and propose the T-Jordan canonical form and its properties.The concepts of the T-minimal polynomial and the T-characteristic polynomial are proposed.As a special case... In this paper,we investigate the tensor similarity and propose the T-Jordan canonical form and its properties.The concepts of the T-minimal polynomial and the T-characteristic polynomial are proposed.As a special case,we present properties when two tensors commute based on the tensor T-product.We prove that the Cayley-Hamilton theorem also holds for tensor cases.Then,we focus on the tensor decompositions:T-polar,T-LU,T-QR and T-Schur decompositions of tensors are obtained.When an F-square tensor is not invertible with the T-product,we study the T-group inverse and the T-Drazin inverse which can be viewed as the extension of matrix cases.The expressions of the T-group and T-Drazin inverses are given by the T-Jordan canonical form.The polynomial form of the T-Drazin inverse is also proposed.In the last part,we give the T-core-nilpotent decomposition and show that the T-index and T-Drazin inverses can be given by a limit process. 展开更多
关键词 T-Jordan canonical form T-function T-index Tensor decomposition T-Drazin inverse T-group inverse T-core-nilpotent decomposition
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永恒的经典——卡农(Canon)曲式
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作者 石晓平 《商丘职业技术学院学报》 2011年第4期103-104,共2页
当今人们的生活和音乐越来越不可分割,无论是在热闹的大街上或是优雅的公园里随处都可以听见各种音乐,在形形色色的音乐之中就有不少各种形式的"卡农"充斥在其中。在许多人看来,这些音乐它只是一首曲子、一个作品,我们现在熟... 当今人们的生活和音乐越来越不可分割,无论是在热闹的大街上或是优雅的公园里随处都可以听见各种音乐,在形形色色的音乐之中就有不少各种形式的"卡农"充斥在其中。在许多人看来,这些音乐它只是一首曲子、一个作品,我们现在熟悉的仅仅是这种曲式的代表作品,很多人对于这种曲式形式还并不了解。其实,卡农曲式是西方复调音乐曲式的一种常见形式。 展开更多
关键词 卡农曲式 主要类型 演奏方式
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T-Type Digraphs via Kronecker Canonical Form
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作者 CHEN Sheng HU Haofei 《Journal of Systems Science & Complexity》 2025年第3期1259-1280,共22页
In this paper,the authors aim to study Kronecker canonical form theory for T-type digraphs,which can be used to construct trees by tensor product with some directed paths.Firstly,the authors show that some bicyclic di... In this paper,the authors aim to study Kronecker canonical form theory for T-type digraphs,which can be used to construct trees by tensor product with some directed paths.Firstly,the authors show that some bicyclic digraphs and multicyclic digraphs are T-type digraphs.Secondly,the authors provide a characterization for T-type digraphs by their Kronecker canonical form.Moreover,the authors present an algorithm for computing the Kronecker canonical form,which can be used to determine whether or not a digraph is a T-type digraph.Lastly,for a class of T-type digraphs,the authors show that their incidence matrix pair can be transformed into Kronecker canonical form using unimodular matrices.The authors also present an algorithm related to finding such unimodular matrices. 展开更多
关键词 DIGRAPH incidence matrix Kronecker canonical form tensor product TREE unimodular matrix
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M-Eigenvalues of the Riemann Curvature Tensor of Conformally Flat Manifolds 被引量:1
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作者 Yun Miao Liqun Qi Yimin Wei 《Communications in Mathematical Research》 CSCD 2020年第3期336-353,共18页
We investigate the M-eigenvalues of the Riemann curvature tensor in the higher dimensional conformally flat manifold.The expressions of Meigenvalues and M-eigenvectors are presented in this paper.As a special case,M-e... We investigate the M-eigenvalues of the Riemann curvature tensor in the higher dimensional conformally flat manifold.The expressions of Meigenvalues and M-eigenvectors are presented in this paper.As a special case,M-eigenvalues of conformal flat Einstein manifold have also been discussed,and the conformal the invariance of M-eigentriple has been found.We also reveal the relationship between M-eigenvalue and sectional curvature of a Riemannian manifold.We prove that the M-eigenvalue can determine the Riemann curvature tensor uniquely.We also give an example to compute the Meigentriple of de Sitter spacetime which is well-known in general relativity. 展开更多
关键词 M-eigenvalue Riemann curvature tensor Ricci tensor conformal invariant canonical form
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Huaitang New Nine Forms of Needles of China Start a New Era of Acupuncture Therapy
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《World Journal of Acupuncture-Moxibustion》 1993年第2期64-64,共1页
"Nine forms of needles"were the nine kinds of ancientacupuncture tools,which were made of different stones and met-als in China,firstly recorded in the anctient monumental work,The Yellow Emperor’s Canon of... "Nine forms of needles"were the nine kinds of ancientacupuncture tools,which were made of different stones and met-als in China,firstly recorded in the anctient monumental work,The Yellow Emperor’s Canon of Internal Medicine(722-221 B.C.).After that,except the filiform needle,the others had beenlost gradually.Fortunately,the eminent clinical acupuncturist 展开更多
关键词 Acupuncture needle canon eminent formS EMPEROR heated transformed SHANXI Round
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Huaitang New Nine Forms of Needles of China Start a New Era of Acupuncture Therapy
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《World Journal of Acupuncture-Moxibustion》 1992年第3期64-64,共1页
"Nine forms of needles"were the nine kinds of ancientacupuncture tools,which were made of different stones and met-als in China,firstly recorded in the anctient monumental work,The Yellow Emperor’s Canon of... "Nine forms of needles"were the nine kinds of ancientacupuncture tools,which were made of different stones and met-als in China,firstly recorded in the anctient monumental work,The Yellow Emperor’s Canon of Internal Medicine(722-221 B.C.).After that,except the filiform needle,the others had beenlost gradually.Fortunately,the eminent clinical acupuncturist inChina,world well-known scholar of acupuncture,director of theInstitute of Shanxi Huaitang Nine Forms of Needles,chief Dr Shihuaitang has developed new nine forms of needles using mordenmedicine,morden science and technologey on the basiss ofstuding on the ancient nine forms of needles,and estabished u-nique new nine forms of needles therapies.These therapies 展开更多
关键词 ACUPUNCTURE ACUPUNCTURE formS needle Shanxi canon eminent director SCHOLAR ancient
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Huaitang New Nine Forms of Needles of China Start a New Era of Acupuncture Therapy
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《World Journal of Acupuncture-Moxibustion》 1993年第1期64-64,共1页
'Nine forms of needles' were the nine kinds of ancientacupuncture tools, Which were made of different stones and met-als in China, firstly recorded in the anctient monumental work,The Yellow Emperor’s Canon o... 'Nine forms of needles' were the nine kinds of ancientacupuncture tools, Which were made of different stones and met-als in China, firstly recorded in the anctient monumental work,The Yellow Emperor’s Canon of Internal Medicine(722-221 B.C.). After that, except the filiform needle, the others had beenlost gradually. Fortunately, the eminent clinical acupuncturist inChina, world well-known scholar of acupuncture, director of theInstitute of Shanxi Huaitang Nine Forms of Needles, chief Dr Shihuaitang has developed new nine forms of needles using mordenmedicine, morden science and technologey on the basiss ofstuding on the ancient nine forms of needles, and estabished u-nique new nine forms of needles therapies. These therapies haveextended the indications of acupuncture and improved the thera-peutic effect. 展开更多
关键词 ACUPUNCTURE ACUPUNCTURE formS needle director canon eminent Shanxi SCHOLAR ancient
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基于时变滑模的高速飞行器复合控制方法
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作者 周荻 王欢 +1 位作者 张奕群 楼朝飞 《航空学报》 北大核心 2025年第6期152-166,共15页
针对高速飞行器机动飞行过程中气动参数随时间变化的问题,提出了一种直/气复合系统的时变控制方法。针对高速飞行器复合控制系统时变模型,在气动力系统中,采用线性二次型调节器设计时变控制律。在此基础上,构建了直接力控制时变受控对象... 针对高速飞行器机动飞行过程中气动参数随时间变化的问题,提出了一种直/气复合系统的时变控制方法。针对高速飞行器复合控制系统时变模型,在气动力系统中,采用线性二次型调节器设计时变控制律。在此基础上,构建了直接力控制时变受控对象,然后针对该时变系统提出了一种将系统转换为相变量标准型的滑模控制方法。利用Lyapunov-Krasovskii泛函证明了设计的时变复合控制系统的稳定性。仿真表明,与时不变控制器的仿真结果相比,验证了时变复合控制方法的有效性。 展开更多
关键词 时变复合控制 线性二次型调节器 滑模控制 相变量标准型 LYAPUNOV-KRASOVSKII泛函
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汉语非宾格动词“出现”的短语结构及特征
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作者 刘国兵 《河南师范大学学报(哲学社会科学版)》 北大核心 2025年第5期142-149,共8页
已有非宾格动词研究主要以非宾格假说为切入点,集中探讨汉语中两格归属、句法、语义与生成机制,但并未对其短语结构及特征进行阐释。本研究将非宾格假说与语料库语言学相结合,以“出现”一词为研究对象,探究其意义移变单位、典范形式、... 已有非宾格动词研究主要以非宾格假说为切入点,集中探讨汉语中两格归属、句法、语义与生成机制,但并未对其短语结构及特征进行阐释。本研究将非宾格假说与语料库语言学相结合,以“出现”一词为研究对象,探究其意义移变单位、典范形式、变异情况及局部语法特征。研究结果表明,“出现”主要为隐性表现形式,倾向于与抽象类词汇共选,而显性表现形式则无此倾向;“出现”具有四个意义移变单位,各包含一个典范形式与两个变异。典范形式涉及两种表现形式,以隐性表现形式为主;变异则表现不同,用作参照点时为显性表现形式,描述状态变化时为隐性表现形式。“出现”的不同意义移变单位具有不同的局部语法,主要表现在聚合轴上词集的选择与组合轴上文本序列的排序两个层面。 展开更多
关键词 非宾格动词 意义移变单位 典范形式与变异 局部语法 短语特征
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