Results 291 to 300 of about 912,182 (324)

Frame Potential of Dual Frames and Phase Retrievable Frames

Journal of Contemporary Mathematical Analysis (Armenian Academy of Sciences)
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Jafarizadeh, M., Hasankhani Fard, M. A.
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Characterization of Dual Scalable Frames

Complex Analysis and Operator Theory
Let \(\mathcal{I}\) be a countable index set and \(\Phi = \{\phi_{i}\}_{i \in \mathcal{I}}\) be a sequence in a separable Hilbert space \(\mathcal{H}\). Then \(\Phi\) is called a frame for \(\mathcal{H}\) if there exist constants \(0 < A_{\Phi} \leq B_{\Phi} < \infty\) such that \[ A_{\Phi}\|\phi\|^{2} \leq \sum_{i \in \mathcal{I}}|\langle \phi, \phi_i
Heydarpour, Behine, Arefijamaal, Ali Akbar, Farashahi, Arash Ghaani   +2 more
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K-g-frames and their dual

International Journal of Wavelets, Multiresolution and Information Processing, 2019
This paper is devoted to the study of the dual [Formula: see text]-g-Bessel sequences of [Formula: see text]-g-frames. We firstly make use of the g-preframe operators of a g-Bessel sequence to investigate the constructions of [Formula: see text]-g-frames.
Shi, Shengnan, Huang, Yongdong
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Dual-Frame-Telefonstichproben

2015
Die Entwicklung der Anzahl der Festnetzanschlusse in Deutschland zeigt fur den Zeitraum von 2009 bis 2013 wenig Veranderung und stagniert auf einem Wert von ca. 38 Mio. Anschlusse. Bei einer naheren Untersuchung der Zusammensetzung dieses Wertes anhand des von der Bundesnetzagentur (BNA) fur 2012/2013 veroffentlichten Tatigkeitsberichts kann jedoch ...
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Tight Frames and Dual Frame Pairs

2016
We have already highlighted the frame decomposition, which shows that a frame \(\{f_{k}\}_{k=1}^{\infty }\) for a Hilbert space \(\mathcal{H}\) leads to the decomposition $$\displaystyle\begin{array}{rcl} f =\sum _{ k=1}^{\infty }\langle f,S^{-1}f_{ k}\rangle f_{k},\ \ \forall f \in \mathcal{H};& &{}\end{array}$$ (6.1) here \(S: \mathcal{H ...
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Monoscale Dual Ridgelet Frame

2005
A new system—Monoscale Dual Ridgelet Frame (MDRF) is constructed in this paper, which can be viewed as a generalized version of Monoscale Ridgelet introduced by Candes. The MDRT takes the Dual Ridgelet Frame as its basic component. We show that localizing the Dual Ridgelet Frame into small squares, dyadic partition of [0, 1]2, constitutes a dual frame ...
Tan Shan, Licheng Jiao
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Optimal dual frames for uniform frames with erasures

2015 12th International Conference on Fuzzy Systems and Knowledge Discovery (FSKD), 2015
Given a frame as a coder, its optimal dual as encoder can make the reconstruction error arising from erasure minimum. According to the eigenvalues of the frame operator, we give some sufficient conditions under which the unique optimal dual frame can be identified.
null Fang Shuai, null Jingsong Leng, null Qing Gao, null Jianbo Li   +3 more
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Affine frames, quasi-affine frames, and their duals

Advances in Computational Mathematics, 1998
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Chui, Charles K., Shi, Xianliang, Stöckler, Joachim   +2 more
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Symmetric dual multiwavelet frames

International Journal of Wavelets, Multiresolution and Information Processing
For a given symmetric refinable matrix mask obeying the sum rule of order [Formula: see text], an explicit method is suggested for constructing symmetric almost frame-like multiwavelets providing approximation order [Formula: see text]. Obtained multiwavelet system can be further improved to be a dual multiwavelet frame, keeping symmetry and ...
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Cervical cancer prevention and control in women living with human immunodeficiency virus

Ca-A Cancer Journal for Clinicians, 2021
Philip E Castle, Vikrant V Sahasrabuddhe
exaly