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Expansion of Bessel and g-Bessel sequences to dual frames and dual g-frames | ||
Journal of Linear and Topological Algebra | ||
مقاله 5، دوره 02، شماره 01، خرداد 2013، صفحه 51-57 اصل مقاله (126.6 K) | ||
نوع مقاله: Research Paper | ||
نویسندگان | ||
M. S. Asgari؛ G. Kavian* | ||
Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran, Iran | ||
چکیده | ||
In this paper we study the duality of Bessel and g-Bessel sequences in Hilbert spaces. We show that a Bessel sequence is an inner summand of a frame and the sum of any Bessel sequence with Bessel bound less than one with a Parseval frame is a frame. Next we develop this results to the g-frame situation. | ||
کلیدواژهها | ||
G-frames؛ dual frames؛ dual g-frames | ||
مراجع | ||
[1] O. Christensen, An Introduction to Frames and Riesz Bases. Birkhauser, Boston (2003) [2] O. Christensions, H. O. Kim, R. Y. Kim, Extensions of Bessel sequences to dual pairs of frames. Appl. Comput. Harmon. Anal. 34, (2013), 224-233. [3] I. Daubechies, A. Grossmann, Y. Meyer, Painless nonorthogonal expansions. J. Math. Phys. 27, (1986), 1271-1283. [4] R. J. Duffin, A. C. Schaeer, A class of nonharmonic Fourier series. Trans. Amer. Math. Soc. 72, (2), (1952), 341-366. [5] D. F. Li, W. Sun, Expansion of frames to tight frames. Acta Math. Sin. (Engl. Ser.) 25 (2), (2009), 287-292. [6] W. Sun, G-frames and G-Riesz bases. J. Math. Anal. Appl. 322, (2006), 437-452. | ||
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