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A. I. Shtern 《Functional Analysis and Its Applications》2003,37(2):157-159
Proofs of two assertions are sketched. 1) If the Banach space of a von Neumann algebra A is the third dual of some Banach space, then the space A is isometrically isomorphic to the second dual of some von Neumann algebra A and the von Neumann algebra A is uniquely determined by its enveloping von Neumann algebra (up to von Neumann algebra isomorphism) and is the unique second predual of A (up to isometric isomorphism of Banach spaces). 2) An infinite-dimensional von Neumann algebra cannot have preduals of all orders. 相似文献
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T. Ohwada 《Functional Analysis and Its Applications》2006,40(2):151-154
Saito (Math. Proc. Camb. Phil. Soc., 117, 11–20, 1995) proved Sarason’s interpolation theorem for an analytic crossed product determined by a finite von Neumann algebra. We extend this result without the assumption that the von Neumann algebra is finite. 相似文献
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设M是σ-有限的von Neumann代数,21是M的具有分解性质的次对角代数,即对任意可逆算子T∈M,都存在西算子U∈M及可逆算子A∈21∩21~(-1),使得T=UA,本文证明了21的代数换位是自伴的,同时也证明了21中的可逆算子群是σ-弱连通集。 相似文献
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设H是复Hilbert空间,B(H)表示H上所有有界线性算子构成的代数.本文刻划了B(H)上保正交性的可加映射和von Neumann代数上与运算|·|k交换的可加映射. 相似文献
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In this paper, we introduce the concept of T-local derivations and obtain the main result: each T-local derivation of a von Neumann algebra A into a dual A-bimodule M is a T-derivation, where T is an endomorphism of A to A. 相似文献
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证明了因子von Neumann代数中的套子代数到其单位对偶双模内的每个弱连续的局部3-上循环都是3-上循环. 相似文献
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In this note, we show that a von Neumann algebra M is injective if and only if the weak*similarity degree d*(M) ≤ 2. 相似文献