[1] Asgari M S. Khosravi A. Frames and bases of subspaces in Hilbert spaces. J Math Anal Appl, 2005, 308: 541–553

[2] Balazs P, Feichtinger H G, Hampejs M, Kracher G. Double preconditioning for Gabor frames. IEEE Trans Signal Process, 2006, 54: 4597–4610

[3] Bourouihiya A. The tensor product of frames. Sampling Theory in Signal and Image Process, 2008, 7(1): 65–76

[4] Casazza P, Balan R, Edidin D, Kutyniok G. Decompositions of frames and a new frame identity. SPIE Wavelets Applications in Signal and Image Processing XI, 2005, 5914: 379–388

[5] Casazza P, Kutyniok G. Frames of subspaces. Contemp Math Amer Math Soc, 2004, 345: 87–113

[6] Casazza P, Kutyniok G. Robustness of fusion frames under erasures of subspaces and of local frame vectors.
Contemp Math Amer Math Soc, 2008, 464: 149–160

[7] Casazza P, Kutyniok G, Li S. Fusion frames and distributed processing. Appl Comput Harmon Anal, 2008, 25: 114–132

[8] Christensen O. Frames and bases. An introductory course. Boston: Birkh¨auser, 2008

[9] Christensen O, Laugesen R S. Approximate dual frames in Hilbert spaces and applications to Gabor frames.
Sampling Theory in Signal and Image Processing, 2011, 9: 77–90

[10] Daubechies I, Grossmann A, Meyer Y. Painless nonorthogonal expansions. J Math Phys, 1986, 27: 1271–1283

[11] Duffin R J, Schaeffer A C. A class of nonharmonic Fourier series. Trans Amer Math Soc, 1952, 72: 341–366

[12] Gavruta P. On the duality of fusion frames. J Math Anal Appl, 2007, 333: 871–879

[13] Gilbert J E, Han Y S, Hogan J A, et al. Smooth molecular decompositions of functions and singular integral
operators. Mem Amer Math Soc, 2002, 742: 1–74

[14] Khosravi A, Khosravi B. Frames and bases in tensor products of Hilbert spaces and Hilbert C-modules. Proc Indian Acad Sci (Math Sci), 2007, 117 (1): 1–12

[15] Khosravi A, Khosravi B. Fusion frames and g-frames in Hilbert C-modules. Int J Wavelets Multiresolut Inf Process, 2008, 6: 433–446

[16] Khosravi A, Khosravi B. Fusion frames and g-frames in Banach spaces. Proc Indian Acad Sci (Math Sci), 2011, 121 (2): 155–164

[17] Khosravi A, Mirzaee Azandaryani M. G-frames and direct sums. Bull Malays Math Soc (2), 2013, 36 (2): 313–323

[18] Khosravi A, Musazadeh K. Fusion frames and g-frames. J Math Anal Appl, 2008, 342: 1068–1083

[19] Murphy G J. C-algebra and operator theory. San Diego: Academic Press, 1990

[20] Obeidat S, Samarah S, Casazza P, Tremain J C. Sums of Hilbert space frames. J Math Anal Appl, 2009, 351: 579–585

[21] Sun W. G-frames and g-Riesz bases. J Math Anal Appl, 2006, 322: 437–452

[22] Werther T, Eldar Y C, Subbanna N K. Dual Gabor frames: theory and computational aspects. IEEE Trans Signal Process, 2005, 53: 4147–4158

[23] Xiao X C, Zeng X M. Some equalities and inequalities of g-continuous frames. Sci China Ser A, 2010, 53(10): 2621–2632

[24] Zhu Y C. Characterizations of g-frames and g-Riesz bases in Hilbert spaces. Acta Math Sinica, English Series, 2008, 24 (10): 1727–1736