高阶数值域与压缩问题
Higher-Rank Numerical Ranges and Compression Problems
摘要:
我们考虑矩阵的标准数值域的高阶形式。这项研究的一个核心动机来自量子纠错。我们发展了高阶数值域的基本结构理论,并在厄米特情形下给出了完整的描述。我们还考虑了相关的投影压缩问题。
英文摘要:
We consider higher-rank versions of the standard numerical range for matrices. A central motivation for this investigation comes from quantum error correction. We develop the basic structure theory for the higher-rank numerical ranges, and give a complete description in the Hermitian case. We also consider associated projection compression problems.
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