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arXiv 1504.06504math.FA
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算子值框架的一些性质

Some properties of operator-valued frames

L. Gavruta, P. Gavruta

摘要:

算子值框架(或g-框架)是框架和融合框架的推广,并已用于分组编码,量子计算,相干态理论等。本文给出了有限维希尔伯特空间的算子值框架的一个新公式。作为应用,我们以简单的方式导出了A. Najati关于Parseval框架对g-框架的逼近。我们也得到了一些结果的最佳逼近的算子值框架由其交替的时间,最佳估计。

英文摘要:

Operator-valued frames (or g-frames) are generalizations of frames and fusion frames and have been used in packets encoding, quantum computing, theory of coherent states and more. In this paper, we give a new formula for operator-valued frames for finite dimensional Hilbert spaces. As an application, we derive in a simple manner a recent result of A. Najati concerning the approximation of g-frames by Parseval ones. We obtain also some results concerning the best approximation of operator-valued frames by its alternate duals, with optimal estimates.

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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