Tight J-frames in Krein space and the associated J-frame potential
Tight J-frames in Krein space and the associated J-frame potential
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Kerin 空间中的紧 J 框架和相关的 J 框架潜力
DOI:
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发表时间:
2016
期刊:
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通讯作者:
K. Paul
中科院分区:
文献类型:
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作者:
S. M. Hossein;S. Karmakar;K. Paul
Motivated by the idea of $J$-frame for a Krein space $ extbf{ extit{K}}$, introduced by Giribet extit{et al.} (J. I. Giribet, A. Maestripieri, F. Mart'inez Per'{i}a, P. G. Massey, extit{On frames for Krein spaces}, J. Math. Anal. Appl. (1), {f 393} (2012), 122--137.), we introduce the notion of $zeta-J$-tight frame for a Krein space $ extbf{ extit{K}}$. In this paper we characterize $J$-orthonormal basis for $ extbf{ extit{K}}$ in terms of $zeta-J$-Parseval frame. We show that a Krein space is richly supplied with $zeta-J$-Parseval frames. We also provide a necessary and sufficient condition when the linear sum of two $zeta-J$-Parseval frames is again a $zeta-J$-Parseval frame. We then generalize the notion of $J$-frame potential in Krein space from Hilbert space frame theory. Finally we provided a necessary and sufficient condition for a $J$-frame potential of the corresponding $zeta-J$-tight frame to be minimum.