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2×2算子矩阵的数值域扰动问题

A Pertubation Problem of Numerical Ranges of 2×2 Operator Matrices
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摘要 给出了有限维H ilbert空间中2×2算子矩阵的数值域扰动定理的两种证明方法,并且将该定理推广到无限维H ilbert空间上的自伴算子。 Using two new methods, this paper prores one pertubation theorem on the finite Hilbert space of 2 × 2 operator matrices, and gereralizes this theorem to the infinite Hilbert space of selfadjoint operators.
作者 张景杰
出处 《天津商学院学报》 2006年第6期58-60,共3页 Journal of Tianjin University of Commerce
关键词 HILBERT空间 算子矩阵 数值域 扰动 Hilbert space operator matrix numerical range pertubation
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参考文献6

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