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非交换主理想整环上分块矩阵的秩 总被引:6,自引:2,他引:4
本文从非交换主理想整环R上矩阵A的秩与它在R所嵌入的商除环K上的秩间的关系着手,证得了R上分块矩阵秩的一些结果,因此也解决了[1]中关于p ̄一除环上矩阵秩的一个猜想. 相似文献
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形式三角矩阵环,又称广义三角矩阵环,这类环及其上的模在环模理论中扮演着重要的角色.本文对形式三角矩阵环上的有限表示模进行了一些探讨. 相似文献
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设R是一个右有限连通的正则半局部环。R是一个整环上的全矩阵环的充分必要条件被给出。同时,讨论了不同调维数时,R的结构。 相似文献
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环上矩阵方程AXB+CYD=E的可解性 总被引:6,自引:0,他引:6
设R为一个含幺环,应用矩阵的{1,2}-逆(存在的前提下),本文得到R上矩阵方程AXB+CYD=E有解的充要条件以及一般解的公式,并且推广了著名的Roth等价定理。 相似文献
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《数学的实践与认识》2015,(10)
主要是介绍了非交换环的几乎弱稳定秩的概念,并利用它来研究非交换环上的右Hermite环,右Bezout环及初等因子环之间的关系.证明了具有几乎弱稳定秩的满足条件V的右(左)Hermite环是初等因子环;还证明了具有几乎弱稳定秩的满足条件V的右Bezout环是右Hermite环;除此之外还得到了几乎的Exchang环具有几乎弱稳定秩.最后,给出了在具有几乎弱稳定秩且J(R)不为零的右(左)Hermite环上的任意矩阵都可以分解成LUM的乘积,其中L,M为下三角矩阵,U为上三角矩阵. 相似文献
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设D 是带对合的除环. 当char(D) ≠ 2 时, D 上Hermitian 矩阵几何的基本定理最近已经证明.作者进一步证明了特征2 的带对合的除环上Hermitian 矩阵几何的基本定理, 从而得到任意带对合的除环上Hermitian 矩阵几何的基本定理. 相似文献
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Onofrio Mario Di Vincenzo Plamen Koshlukov Roberto La Scala 《Advances in Applied Mathematics》2006,37(4):541
In this paper we describe completely the involutions of the first kind of the algebra UTn(F) of n×n upper triangular matrices. Every such involution can be extended uniquely to an involution on the full matrix algebra. We describe the equivalence classes of involutions on the upper triangular matrices. There are two distinct classes for UTn(F) when n is even and a single class in the odd case.Furthermore we consider the algebra UT2(F) of the 2×2 upper triangular matrices over an infinite field F of characteristic different from 2. For every involution *, we describe the *-polynomial identities for this algebra. We exhibit bases of the corresponding ideals of identities with involution, and compute the Hilbert (or Poincaré) series and the codimension sequences of the respective relatively free algebras.Then we consider the *-polynomial identities for the algebra UT3(F) over a field of characteristic zero. We describe a finite generating set of the ideal of *-identities for this algebra. These generators are quite a few, and their degrees are relatively large. It seems to us that the problem of describing the *-identities for the algebra UTn(F) of the n×n upper triangular matrices may be much more complicated than in the case of ordinary polynomial identities. 相似文献
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Yi-Jia Tan 《Linear and Multilinear Algebra》2013,61(4):498-517
In this paper, the concept of determinants for the matrices over a commutative semiring is introduced, and a development of determinantal identities is presented. This includes a generalization of the Laplace and Binet–Cauchy Theorems, as well as on adjoint matrices. Also, the determinants and the adjoint matrices over a commutative difference-ordered semiring are discussed and some inequalities for the determinants and for the adjoint matrices are obtained. The main results in this paper generalize the corresponding results for matrices over commutative rings, for fuzzy matrices, for lattice matrices and for incline matrices. 相似文献
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We study matrices over general rings which are sums of nilpotent matrices. We show that over commutative rings all matrices with nilpotent trace are sums of three nilpotent matrices. We characterize 2-by-2 matrices with integer entries which are sums of two nilpotents via the solvability of a quadratic Diophantine equation. Some exemples in the case of matrices over noncommutative rings are given. 相似文献
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研究了交换半环上矩阵的秩和坡上矩阵的可逆条件.利用Beasley的引理以及不变式,获得了交换半环上正则矩阵的行秩、列秩与Schein秩三者相等,以及坡上矩阵可逆的充要条件.推广模糊代数和分配格上矩阵的结果. 相似文献
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该文研究空间Beltrami方程的推广形式,即双特征Beltrami方程.利用外微分形式与矩阵的外代数等工具,将双特征Beltrami方程转化为一个非齐次的狆 调和方程,转化过程中只用到加于特征矩阵的一致椭圆型条件.然后验证了算子犃满足的条件:Lipschitz型条件、单调不等式、齐次性条件以及算子犅满足的控制增长条件.并利用得到的狆 调和方程,给出了双特征Beltrami方程广义解分量函数的弱单调性结果. 相似文献
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Yi-Jia Tan 《Linear and Multilinear Algebra》2018,66(12):2501-2511