References
- O. Christensen: Functions, Spaces and Expansions. Second Edition, Birkhauser, Boston, 2010.
- O. Christensen: An Introduction to Frames and Riesz Bases. Second Edition, Birkhauser, Boston, 2016.
- I. Daubechies, A. Grossmann & Y. Meyer: Painless nonorthogonal expansions. J. Math. Phys. 27 (1986), 1271-1283. https://doi.org/10.1063/1.527388
- R.J. Duffin & A.C. Schaeffler: A class of non-harmonic Fourier series. Trans. Amer. Math. Soc. 72 (1952), 341-366. https://doi.org/10.1090/S0002-9947-1952-0047179-6
- T.C. Easwaran Nambudiri & K. Parthasarathy: Generalised Weyl-Heisenberg frame operators. Bull. Sci. Math. 136 (2012), 44-53. https://doi.org/10.1016/j.bulsci.2011.09.001
- T.C. Easwaran Nambudiri & K. Parthasarathy: Characterization of Weyl-Heisenberg frame operators. Bull. Sci. Math. 137 (2013), 322-324. https://doi.org/10.1016/j.bulsci.2012.09.001
- D. Gabor: Theory of communication. Journal of Institution of Electrical Engineers 93 (1946), 429-457.
- K. Grochenig: Foundations of Time Frequency Analysis. Birkhauser, Boston, 2001.
- D. Han & D.R. Larson: Frames, Bases and Group representations. Mem. Am. Math. Soc. 147 (2000), 697-714.
- M. Janssen: Gabor representation of generalized functions. J. Math. Anal. Appl. 83 (1981), 377-394. https://doi.org/10.1016/0022-247X(81)90130-X
- J. Laurence: Linear independence of Gabor systems in finite dimensional vector spaces. J. Fourier Anal. Appl. 11 (2005), 715-726. https://doi.org/10.1007/s00041-005-5017-6
- R.D. Malikiosis: A note on Gabor frames in finite dimensions. Appl. Comp. Harmonic Anal. 38 (2015), 318-330. https://doi.org/10.1016/j.acha.2014.06.004
- N.M.M. Namboothiri, T.C.E. Nambudiri & J. Thomas: Frame operators and semiframe operators of finite Gabor frames. J. Korean Soc. Math. Educ. Ser. B: Pure Appl. Math. 28 (2021), no. 4, 315-328, http://dx.doi.org/10.7468/jksmeb.2021.28.4.315.