共查询到19条相似文献,搜索用时 78 毫秒
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表矩阵为初等阵之积的问题,是矩阵论中基本问题之一.一些矩阵方法能够具体操作也是赖于此问题的结论,但是一般环上,此问题尚无结果.本文对局部环,探讨此问题的解决. 相似文献
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有限交换环上典型群的Sylow子群 总被引:6,自引:2,他引:4
令R为有限交换局部环,M表其唯一的极大理想,k表其剩余类域.本文定出了R上的一般线性群GLnR,辛群Sp2nR及双曲正交群O2nR的Sylow子群.一般讲,若charx=p,上述三类典型群的Sylow p-子群分别同构于由某些特殊形式的矩阵生成的子群;若chark≠p,上述三类典型群的Sylowp-子群分别同构于一循环群或半二面体群与若干Zp型循环群的圈积。 相似文献
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设局部GCD整环(R,m)满足: 存在u∈m-m2, 使得R/(u)是赋值环, 且Ru是 Bézout整环, 则R叫做 U2环, u叫做一个正规元素. 证明了若R是U2环, 则R与一元多项式环R[X]都是凝聚环; 且若u是R的正规元素, dim(R/(u))=1, 则每个有限生成投射R[X]-模是自由模. 相似文献
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高有 《数学物理学报(A辑)》2005,25(4):564-568
设K=F_(q^2),其特征为p, q=p^α,K有对合自同构ω:a→a^q. G是一个p 群,其阶为p^β, 群代数R=KG为一局部环. K的2阶自同构ω可延拓为R的一个2阶自同构,记为ω',为方便,对任意a∈R, 记ω‘(a)为~a. R上2n级酉群定义为U_(2n)R={A∈GL_(2n)R|A(0,I^n,I^n,0)~A^t=(0,I^n,I^n,0)} 该文计算了U_(2n)R的阶. 相似文献
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Pooja Singla 《代数通讯》2013,41(11):4060-4067
We study the complex irreducible representations of special linear, symplectic, orthogonal, and unitary groups over principal ideal local rings of length two. We construct a canonical correspondence between the irreducible representations of all such groups that preserves dimensions. The case for general linear groups has already been proved by the author. 相似文献
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Paul arne østvær 《K-Theory》1999,16(4):391-397
In this paper we use an excision result in algebraic K-theory and recent two-primary calculations of algebraic K-theory of number rings to obtain results on the two-primary algebraic K-theory of some group rings. 相似文献
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尚琥 《数学的实践与认识》2005,35(4):209-213
给出模糊拓扑环族直积的定义,研究它的性质,及任意模糊拓扑环族直积、与其模糊拓扑子环,与其模糊拓扑剩余环之间的同构问题.并对(QU)型模糊拓扑环关于上述问题进行研究. 相似文献
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Summary Most of the numerical methods for the inversion of the Laplace Transform require the values of several incidental parameters. Generally, these parameters are related to the properties of the algorithm and to the analytical properties of the Laplace Transform functionF(s).One of the most promising inversion methods, the Weeks methods, computes the inverse functionf(t) as a series expansion of Laguerre functions involving two parameters, usually denoted by andb. In this paper we characterize the optimal choiceb
opt ofb, which maximizes the rate of convergence of the series, in terms of the location of the singularities ofF(s). 相似文献
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半平面上随机Dirichlet级数的增长性 总被引:2,自引:0,他引:2
在较弱的系数条件下证明了右半平面上Dirichlet级数增长性定理,并应用到随机Dirich- let级数上去,得到了在一定条件下,两类级数a.s.有相同的增长级,从而推广和改良一系列定理,使相关问题的研究变得方便简洁. 相似文献
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半平面上随机Dirichlet 级数的增长性 总被引:3,自引:0,他引:3
在较弱的系数条件下证明了右半平面上Dirichlet级数增长性定理,并应用到随机Dirichlet级数上去,得到了在一定条件下,两类级数a.s.有相同的增长级,从而推广和改良一系列定理,使相关问题的研究变得方便简洁. 相似文献
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We establish the construction theory of function based upon a local field K p as underlying space. By virture of the concept of pseudo-differential operator, we introduce fractal calculus(or, p-type calculus, or, Gibbs-Butzer calculus). Then, show the Jackson direct approximation theorems, Bermstein inverse approximation theorems and the equivalent approximation theorems for compact group D( Kp) and locally compact group K+p(= Kp), so that the foundation of construction theory of function on local fields is established. Moreover, the Jackson type, Bernstein type,and equivalent approximation theorems on the H ?lder-type space Cσ(Kp), σ 0, are proved; then the equivalent approximation theorem on Sobolev-type space Wrσ(Kp),σ≥ 0, 1 ≤ r +∞, is shown. 相似文献