共查询到20条相似文献,搜索用时 78 毫秒
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定义了子空间格代数的(弱闭双边)模,对有限维Hilbert空间的强自反子空间格代数的模及原子Boolean格代数的模中的有限秩算子进行了讨论,得到有限秩算子一定可以表示为秩1算子的和. 相似文献
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定义了子空间格代数的(弱闭双边)模,对有限维Hilbert空间的强自反子空间格代数的模及原子Boolean格代数的模中的有限秩算子进行了讨论,得到了有限秩算子一定可以表示为秩1算子的和。 相似文献
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本文主要研究非In型因子VonNeumann代数的Nest子代数及两元生成格自反代数的可加导子的自动线性性和连续性问题.通过给出一个含无限维交换VonNeumann子代数的代数上可加导子定理,证明了非In型因子VonNeumann代数的Nest子代数上的可加导子是线性的,从而是自动连续的.这推广并简化证明了作者[1]中的主要结果.对于在非自伴算子代数研究中起重要的两元生成格自反代数,给出了所有可加导子是线性导子的充分必要条件. 相似文献
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自反Banach空间上算子代数的超自反性 总被引:4,自引:0,他引:4
本文引入自发Banach空间上算子代数A的超自反定义,讨论了A超自反的充要条件,超自反常数的估计以及超自反在代数同构下的不变性。 相似文献
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关于非交换子空间格代数的超自反性 总被引:1,自引:0,他引:1
利用Arveson关于自反代数超自反的特征,给出Hilbert空间上一类非交换格自反代数超自反常数的一个估计,证明了一些非交换子空间格自反代数的超自反性. 相似文献
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《Journal of Pure and Applied Algebra》2023,227(5):107275
In this article, we realize the finite range ultragraph Leavitt path algebras as Steinberg algebras. This realization allows us to use the groupoid approach to obtain structural results about these algebras. Using the skew product of groupoids, we show that ultragraph Leavitt path algebras are graded von Neumann regular rings. We characterize strongly graded ultragraph Leavitt path algebras and show that every ultragraph Leavitt path algebra is semiprimitive. Moreover, we characterize irreducible representations of ultragraph Leavitt path algebras. We also show that ultragraph Leavitt path algebras can be realized as Cuntz-Pimsner rings. 相似文献
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We prove that if R is a left Noetherian and left regular ring then the same is true for any bijective skew PBW extension A of R. From this we get Serre's Theorem for such extensions. We show that skew PBW extensions and its localizations include a wide variety of rings and algebras of interest for modern mathematical physics such as PBW extensions, well-known classes of Ore algebras, operator algebras, diffusion algebras, quantum algebras, quadratic algebras in 3-variables, skew quantum polynomials, among many others. We estimate the global, Krull and Goldie dimensions, and also Quillen's K-groups. 相似文献
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We realize Leavitt path algebras as partial skew group rings and give new proofs, based on partial skew group ring theory of the Cuntz–Krieger uniqueness theorem and simplicity criteria for Leavitt path algebras. 相似文献
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Tarek Sayed Ahmed 《Mathematical Logic Quarterly》2009,55(3):280-287
We show that it is impossible to define a substitution operator for arbitrary representable cylindric algebras that agrees in its basic properties with the notion of substitutions introduced for dimension complemented algebras (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim) 相似文献
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GAO Mingchu Department of Mathematics University of Illinois at Urbana-Champaign Urbana IL USA 《中国科学A辑(英文版)》2006,49(6):800-819
Certain free products are introduced for operator spaces and dual operator spaces. It is shown that the free product of operator spaces does not preserve the injectivity. The linking C*-algebra of the full free product of two ternary rings of operators (simply, TRO's) is *-isomorphic to the full free product of the linking C*-algebras of the two TRO's. The operator space-reduced free product of the preduals of von Neumann algebras agrees with the predual of the reduced free product of the von Neumann algebras. Each of two operator spaces can be embedded completely isometrically into the reduced free product of the operator spaces. Finally, an example is presented to show that the C*-algebra-reduced free product of two C*-algebras may be contractively isomorphic to a proper subspace of their reduced free product as operator spaces. 相似文献
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We present some general theorems about operator algebras that are algebras of functions on sets, including theories of local algebras, residually finite-dimensional operator algebras and algebras that can be represented as the scalar multipliers of a vector-valued reproducing kernel Hilbert space. We use these to further develop a quantized function theory for various domains that extends and unifies Agler's theory of commuting contractions and the Arveson-Drury-Popescu theory of commuting row contractions. We obtain analogous factorization theorems, prove that the algebras that we obtain are dual operator algebras and show that for many domains, supremums over all commuting tuples of operators satisfying certain inequalities are obtained over all commuting tuples of matrices. 相似文献
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姜玉秋 《数学的实践与认识》2009,39(3)
算子群作为群的推广,算子群在群论里有许多应用.类似地,作为算子群和李代数的推广,算子李代数将会有许多应用.给出了算子李代数的一些性质,得到了算子李代数半单性的充分必要条件.同时得到算子李代数半单性与非退化killing型的关系. 相似文献
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Askar Dzhumadil’daev 《代数通讯》2018,46(1):129-142
We prove that assosymmetric algebras under the Jordan product are Lie triple algebras. A Lie triple algebra is called special if it is isomorphic to a subalgebra of the plus-algebra of some assosymmetric algebra. We establish that the Glennie identity of degree 8 is valid for special Lie triple algebras, but not for all Lie triple algebras. 相似文献
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Victor G. Kac 《Advances in Mathematics》2008,217(6):2485-2562
We extend classical results of Kostant et al. on multiplets of representations of finite-dimensional Lie algebras and on the cubic Dirac operator to the setting of affine Lie algebras and twisted affine cubic Dirac operator. We prove in this setting an analogue of Vogan's conjecture on infinitesimal characters of Harish-Chandra modules in terms of Dirac cohomology. For our calculations we use the machinery of Lie conformal and vertex algebras. 相似文献