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arXiv 2409.10282math.OCcs.SYeess.SYmath.RA
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相位有界锥中的矩阵补全与分解

Matrix Completion and Decomposition in Phase Bounded Cones

Ding Zhang, Axel Ringh, Li Qiu

AI总结:

本文研究相位有界锥中的矩阵补全与分解问题,通过对偶锥解释揭示二者的对偶性,推导充要条件并刻画带状部分矩阵的所有相位有界补全,将PSD锥的主要结果推广至更一般情形。

摘要:

在半正定(PSD)矩阵锥中进行矩阵补全与分解的问题,是一个已被充分理解的问题,在线性代数、优化和控制理论等领域具有许多重要应用。本文考虑在更广泛的一类锥,即相位有界锥中的补全与分解问题。我们表明,PSD情形下的大多数主要结果都可以推广到相位有界情形。更具体地说,这是通过首先利用对偶锥解释揭示补全问题与分解问题之间的对偶性来实现的。在此基础上,我们随后推导了相位有界补全与分解问题的充要条件,并刻画了具有带状模式的可补全部分矩阵的所有相位有界补全。

英文摘要:

The problem of matrix completion and decomposition in the cone of positive semidefinite (PSD) matrices is a well-understood problem, with many important applications in areas such as linear algebra, optimization, and control theory. This paper considers the completion and decomposition problems in a broader class of cones, namely phase-bounded cones. We show that most of the main results from the PSD case carry over to the phase-bounded case. More precisely, this is done by first unveiling a duality between the completion and decomposition problems, using a dual cone interpretation. Based on this, we then derive necessary and sufficient conditions for the phase-bounded completion and decomposition problems, and also characterize all phase-bounded completions of a completable partial matrix with a banded pattern.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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