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Minimum Cycle of Row Vector of a Generalized Circulant Fuzzy Matrix
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作者 冼国荣 陈卓荣 《Chinese Quarterly Journal of Mathematics》 CSCD 1997年第1期104-110, ,共7页
In this paper,we intreduce the concept and discuss the properties of minimum cycle of row vector in a generalized circulant Fuzzy matrix. We present a new expression for circulant Fuzzy matrix,and discuss some propert... In this paper,we intreduce the concept and discuss the properties of minimum cycle of row vector in a generalized circulant Fuzzy matrix. We present a new expression for circulant Fuzzy matrix,and discuss some properties of the idempotent elements of the semigroup of generalized circulant Fuzzy matrixes in connection with minimum cycle of row vector. 展开更多
关键词 generalized circulant Fuzzy matrix SEMIGROUP VECTOR CYCLE idempotent element
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EIGENVALUES OF A SPECIAL KIND OF SYMMETRIC BLOCK CIRCULANT MATRICES 被引量:3
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作者 WangLigong LiXueliang HoedeC 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2004年第1期17-26,共10页
In this paper, the spectrum and characteristic polynomial for a special kind of symmetric block circulant matrices are given.
关键词 block circulant matrix EIGENVALUE characteristic polynomial integr al graph.
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On the Circulant and Aperiodic Models of Deconvolution 被引量:1
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作者 Zou Mouyan & Rolf Unbehauen 《Journal of Systems Engineering and Electronics》 SCIE EI CSCD 1995年第1期16-24,共9页
The popularly used circulant matrix model of deconvolution is mostly heavily ill-posed or singular and it is not suitable to many blind deconvolution problems. The aperiodic matrix model can improve the condition numb... The popularly used circulant matrix model of deconvolution is mostly heavily ill-posed or singular and it is not suitable to many blind deconvolution problems. The aperiodic matrix model can improve the condition number of deconvolution problems and its accommodation is much wider than the circulant one's. This paper discusses a comparison of the two models including their ill-posedness, the rationality of the approximation by the models, and their computational efficiency. The comparison shows that the aperiodic model is promising in the development of new restoration algorithms. 展开更多
关键词 circulant matrix model aperiodic model DECONVOLUTION
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Algorithms for Finding the Inverses of Factor Block Circulant Matrices 被引量:1
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作者 Zhaolin Jiang Zongben Xu Shuping Gao 《Numerical Mathematics A Journal of Chinese Universities(English Series)》 SCIE 2006年第1期1-11,共11页
In this paper,algorithms for finding the inverse of a factor block circulant matrix, a factor block retrocirculant matrix and partitioned matrix with factor block circulant blocks over the complex field are presented ... In this paper,algorithms for finding the inverse of a factor block circulant matrix, a factor block retrocirculant matrix and partitioned matrix with factor block circulant blocks over the complex field are presented respectively.In addition,two algorithms for the inverse of a factor block circulant matrix over the quaternion division algebra are proposed. 展开更多
关键词 逆矩阵 分块矩阵 算法 循环矩阵
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The primitive matrices of sandwich semigroups of generalized circulant Boolean matrices
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作者 LIU Jian-ping CHEN Jin-song 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2013年第3期311-320,共10页
Let Gn(C) be the sandwich semigroup of generalized circulant Boolean matrices with the sandwich matrix C and Gc(Jr~) the set of all primitive matrices in Gn(C). In this paper, some necessary and sufficient condi... Let Gn(C) be the sandwich semigroup of generalized circulant Boolean matrices with the sandwich matrix C and Gc(Jr~) the set of all primitive matrices in Gn(C). In this paper, some necessary and sufficient conditions for A in the semigroup Gn(C) to be primitive are given. We also show that Gc(Jn) is a subsemigroup of Gn(C). 展开更多
关键词 generalized circulant Boolean matrix sandwich semigroup primitive matrix.
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Effects of Activating Blood Circulation to Resolve Blood Stasis and Glucosamine Capsules Therapy on the Expression of Matrix Metalloproteinase in Post-traumatic Knee Osteoarthritis
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作者 Mingguang CHEN Shiqiang CHEN +5 位作者 Ning YANG Jin YANG Yingang LI Xiaoxia CAO Chunfeng CHANG Xuelan WU 《Medicinal Plant》 CAS 2019年第3期77-81,86,共6页
[Objectives] To observe the clinical effects of activating blood circulation to resolve blood stasis and glucosamine hydrochloride capsules therapy on post-traumatic knee osteoarthritis treatment,to measure the expres... [Objectives] To observe the clinical effects of activating blood circulation to resolve blood stasis and glucosamine hydrochloride capsules therapy on post-traumatic knee osteoarthritis treatment,to measure the expression of matrix metalloproteinase in post-traumatic knee osteoarthritis patients before and after treatment,and to explore its relevant molecular mechanisms. [Methods]A total of 60 patients with posttraumatic knee osteoarthritis in early stage in Affiliated Hospital of Shannxi University of Chinese Medicine from January 2015 to December2017 were selected and randomly divided into the control group( n = 30) and the observation group( n = 30). The control group was given oral administration of glucosamine hydrochloride capsules for 6 courses of the treatment. The observation group was using the activating blood circulation to resolve blood stasis therapy for 6 courses of treatment. The recovery of traumatic knee osteoarthritis and the symptom of traditional Chinese medicine( TCM) in 2 groups was compared before and after treatment. The symptoms and the quantitative assessment rating scale of knee osteoarthritis,the pain index of knee and the TCM symptom scores were recorded in both groups. And the synovial fluid and serum of patients were collected to detect the expression of matrix metalloproteinase. [Results]The symptoms and the quantitative assessment rating scale of knee osteoarthritis,the pain index of knee and TCM symptom scores of the 2 groups in the 1 st week,the 12 th week and the 24 th week after the treatment were significantly lower than those before the treatment,and the difference was statistically significant( P < 0. 05). Two therapeutic methods had certain therapeutic effects on the recovery from traumatic knee osteoarthritis,and could significantly improve the TCM syndrome. There were better therapeutic effects on oral decoction of traditional Chinese medicine than oral glycosaminoglycans hydrochloride capsules on treating traumatic knee osteogenesis( P < 0. 05). The expression level of MMP3 was decreased significantly in both groups( P <0. 001),while the expression level of MMP13 had no significant change in both groups( P >0. 05). The expression level of MMP1 was decreased significantly in the observation group( P < 0. 001),but there was no significant change in the control group after treatment( P >0. 05). [Conclusions]Two treatment methods have been effective in this clinical study. We found that the expression level of MMP3 was decreased significantly after treatment in 2 therapies,which can be clinically applied. 展开更多
关键词 Activating BLOOD circulATION to RESOLVE BLOOD stasis GLUCOSAMINE hydrochloride Osteoarthritis Knee joint matrix metalloproteinases-1 matrix metalloproteinases-3 matrix metalloproteinases-13 Therapeutic effects
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Applications of Symmetric Circulant Matrices to Isotropic Markov Chain Models and Electrical Impedance Tomography
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作者 Eugene Demidenko 《Advances in Pure Mathematics》 2017年第2期188-198,共11页
Symmetric circulant matrices (or shortly symmetric circulants) are a very special class of matrices sometimes arising in problems of discrete periodic convolutions with symmetric kernel. First, we collect major proper... Symmetric circulant matrices (or shortly symmetric circulants) are a very special class of matrices sometimes arising in problems of discrete periodic convolutions with symmetric kernel. First, we collect major properties of symmetric circulants scattered through the literature. Second, we report two new applications of these matrices to isotropic Markov chain models and electrical impedance tomography on a homogeneous disk with equidistant electrodes. A new special function is introduced for computation of the Ohm’s matrix. The latter application is illustrated with estimation of the resistivity of gelatin using an electrical impedance tomography setup. 展开更多
关键词 circulant matrix Electrical Impedance TOMOGRAPHY LAPLACE Equation MARKOV Chain Ohm’s Law
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ONTHEPROPERTIESOFZCIRCULANTMATRICES
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作者 DING Xueren WANG Peili (Dept. of Mathematics) 《Transactions of Tianjin University》 EI CAS 1996年第1期91-93,共3页
Some properties of Z circulant matrices are given.
关键词 Z circulant matrix normal matrix square matric function
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Circulant矩阵构造准循环LDPC码的旋转环长分析法(英文)
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作者 齐行行 DOUGLAS Leith 《吉林大学学报(信息科学版)》 2011年第3期213-220,共8页
低密度奇偶检验(QC-LDPC:Quasi-Cyclic Low-Density Parity-Check)码的环长分布影响决定着LDPC码的解码效果和编码复杂度,但其分析较困难。为此,首次提出旋转距离分析法,用于分析基于Circulant矩阵构造的准循环低密度奇偶校验码(QC-LDPC... 低密度奇偶检验(QC-LDPC:Quasi-Cyclic Low-Density Parity-Check)码的环长分布影响决定着LDPC码的解码效果和编码复杂度,但其分析较困难。为此,首次提出旋转距离分析法,用于分析基于Circulant矩阵构造的准循环低密度奇偶校验码(QC-LDPC码)的环分布,并给出了任何一个基于Circulant矩阵构造出的QC-LDPC码中的最小环长(girth)的上限(12)。同时,运用该方法,分析出一种权重为(3,5)的QC-LD-PC码的译码效果与该码环分布的关系。由于LDPC码奇偶校验矩阵中的Circulant子矩阵,可以被当成1个矩阵节点的单一节点看待,从而简化了整个码的特纳图,使寻找QC-LDPC码中闭环的方法变得简单。 展开更多
关键词 准循环低密度奇偶校验码(QC-LDPC) circulant矩阵 旋转距离分析 最小环长 环分布 矩阵Tanner图
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求首尾和r-循环矩阵的极小多项式的算法(英文) 被引量:4
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作者 徐清舟 李慧琼 江兆林 《数学杂志》 CSCD 北大核心 2005年第6期599-604,共6页
研究了域上首尾和r-循环矩阵,利用多项式环的理想的Gr bner基的算法给出了任意域上首尾和r-循环矩阵的极小多项式和公共极小多项式的一种算法.同时给出了这类矩阵逆矩阵的一种求法.
关键词 首尾和r-循环矩阵 极小多项式 公共极小多项式 GROEBNER基
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r-循环矩阵求逆和广义逆的Euclid算法 被引量:3
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作者 江兆林 刘三阳 《电子科技大学学报》 EI CAS CSCD 北大核心 2004年第3期312-315,共4页
利用多项式的Euclid算法给出了非奇异的r-循环矩阵求逆矩阵的一个新算法,该算法同时推广到用于求奇异r-循环矩阵的群逆和Moore-Penrose逆。最后给出了应用该算法的数值例子。
关键词 r-循环矩阵 群逆 MOORE-PENROSE逆 多项式环 Euclid算法
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R-循环分块矩阵的充要条件及有关算法的计算复杂性 被引量:2
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作者 何承源 《四川师范大学学报(自然科学版)》 CAS CSCD 1998年第4期395-398,共4页
获得了R-循环分块矩阵的一些充要条件,并利用FFT证明了有关算法的计算复杂性为O(n2mlog2m+mn3).
关键词 分块矩阵 r-循环分块矩阵 循环矩阵 充要条件
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关于对称R-循环分块矩阵的注记 被引量:3
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作者 何承源 《四川大学学报(自然科学版)》 CAS CSCD 北大核心 1998年第4期519-523,共5页
首先推广了已有的分解定理,其次,当R=In时,获得的分解定理类似于正规矩阵的情形.
关键词 循环分块矩阵 块正交矩阵 分解定理
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一类素数维的r-循环矩阵的特征向量(英文) 被引量:2
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作者 陈生安 《数学杂志》 CSCD 北大核心 2002年第2期157-161,共5页
在此文中我们证明了素数维的r 循环矩阵 (r>0 )的特征向量 ,能用分圆类的概念适当地表示出来 .推广了AndrewJ .Lazaras[1]的结果 .
关键词 r-循环矩阵 特征向量 素数维
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r-循环矩阵开平方的两个快速算法 被引量:2
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作者 沈光星 《计算机应用与软件》 CSCD 北大核心 2003年第5期1-2,53,共3页
本文利用快速富里叶变换(FFT)和矩阵分块逐次降阶的方法,给出了两种n阶r-循环矩阵开平方的快速算法,其计算复杂性均为O(nlog_2 n)。
关键词 r-循环矩阵 开平方 快速算法 快速富里叶变换 时间复杂性
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关于(k,h)-Fibonacci和(k,h)-Lucas数的r-循环矩阵的谱范数(英文) 被引量:2
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作者 沈守强 岑建苗 《浙江大学学报(理学版)》 CAS CSCD 2014年第4期386-390,共5页
基于矩阵的一般理论与(k,h)-Fibonacci数和(k,h)-Lucas数的一些性质,给出r-循环矩阵An=Cr(F(k,h)0,F(k,h)1,…,F(k,h)n-1)和Bn=Cr(Lk,h0,L(k,h)1,…,L(k,h)n-1)的谱范数的上界与下界,得到了这些矩阵的Hadamard积与Kronecker积的谱范数... 基于矩阵的一般理论与(k,h)-Fibonacci数和(k,h)-Lucas数的一些性质,给出r-循环矩阵An=Cr(F(k,h)0,F(k,h)1,…,F(k,h)n-1)和Bn=Cr(Lk,h0,L(k,h)1,…,L(k,h)n-1)的谱范数的上界与下界,得到了这些矩阵的Hadamard积与Kronecker积的谱范数的一些界. 展开更多
关键词 r-循环矩阵 谱范数 (k h)-Fibonacci数 (k h)-Lucas数
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第二类r-置换因子循环矩阵的性质及谱分解 被引量:1
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作者 胡艳 陆亚哲 《西华大学学报(自然科学版)》 CAS 2015年第3期83-88,共6页
给出第二类r-置换因子循环矩阵的概念及一些基本性质。利用第二类r-置换因子循环矩阵的特征值和非奇异矩阵的充要条件,得出第二类r-置换因子循环矩阵的谱分解。
关键词 第二类r-置换因子循环矩阵 非奇异 谱分解
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r-循环矩阵逆矩阵的插值法证明 被引量:10
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作者 郭运瑞 江兆林 《广州师院学报(自然科学版)》 1997年第1期22-27,共6页
本文用插值法给出了[1]中r-循环矩阵逆矩阵计算公式的一个简化证明
关键词 r-循环矩阵 逆矩阵 插值法 范德蒙矩阵 插值点 矩阵计算
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r-循环矩阵求逆与相乘的一种算法 被引量:2
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作者 卢诚波 《丽水学院学报》 2004年第5期11-15,共5页
不通过特征值的计算,直接给出了n阶r-循环矩阵求逆与相乘的一种算法,推广了现有的结果。若用FFT计算,其计算复杂性为O(nlog2n)。
关键词 γ-循环矩阵 逆矩阵 矩阵相乘 算法 计算复杂性 快速富里叶变换
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对文《R-循环分块矩阵求逆的快速傅里叶算法》的注记 被引量:1
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作者 卢诚波 《科技通报》 2007年第1期6-10,共5页
指出了文《R-循环分块矩阵求逆的快速傅里叶算法》[1]中的一个错误,并证明了n阶r-循环矩阵的m次方根矩阵中仍为r-循环矩阵的矩阵个数为mn,进一步给出了求n阶r-循环矩阵的m次方根矩阵中仍为r-循环矩阵的矩阵的快速算法,若用FFT计算一个m... 指出了文《R-循环分块矩阵求逆的快速傅里叶算法》[1]中的一个错误,并证明了n阶r-循环矩阵的m次方根矩阵中仍为r-循环矩阵的矩阵个数为mn,进一步给出了求n阶r-循环矩阵的m次方根矩阵中仍为r-循环矩阵的矩阵的快速算法,若用FFT计算一个m次方根矩阵,其时间复杂性为O(nlog2n);计算全部平方根矩阵的时间复杂性为O(nmn)。同时,本文还给出了求r-循环矩阵主平方根矩阵的算法。 展开更多
关键词 r-循环矩阵 快速傅里叶变换 m次方根矩阵 主平方根矩阵 时间复杂性
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