[1] Duffin R J, Schaeffer A C. A class of nonharmonic Fourier series. Trans Amer Math Soc, 1952, 72(2): 341--366
[2] Daubechies I, Grossmann A, Meyer Y. Painless nonorthogonal expensions. J Math Phs, 1986, 27(1): 1271--1283
[3] Heil C E, Walnut D F. Continuous and discrete wavelet transform. SIAM Rev, 1989, 31(3): 628--666
[4] Sun Wenchang. G-frames and g-Riesz bases. J Math Anal Appl, 2006, 322(1): 437--452
[5] Christensen O. An Introduction to Frames and Riesz Bases. Boston: Birkhäuser, 2003: 50--75
[6] Han Deguang. Larson D R. Frames, Bases, and Group Representations. Texas: Memoirs of the AMS, 2000: 99--110
[7] Christensen O, Heil C. Perturbations of Banach frames and atomic decompositions. Math Nachr, 1997, 185(1): 33--47
[8] Rudin W. Functional Analysis. 2nd ed. New York: McGraw-Hill, 1991: 101--120
[9] Asgari M S, Khosravi A. Frames and bases of subspaces in Hilbert spaces. J Math Anal Appl, 2005, 308(2): 541--553 |