Publication List:

  1. A. Benavente, O. Christensen, M. Hasannasab, H.O. Kim, R.Y. Kim, F.D. Kovac, Approximately dual pairs of wavelet frames, 507, no. 2, Paper No. 125841, 11 pp, 2022
  2. O. Christensen, S.S. Goh, H.O. Kim, R.Y. Kim, Translation partitions of unity, symmetry properties, and Gabor frames, 47, no. 4, Paper No. 49, 26 pp, 2021
  3. O. Christensen, S. Datta, R.Y. Kim, Equiangular frames and generalizations of the Welch bound to dual pairs of frames, 68, no. 12, 2495--2505, 2020
  4. O. Christensen, A.J.E.M. Janssen, H.O. Kim, R.Y. Kim, Approximately dual Gabor frames and almost perfect reconstruction based on a class of window functions, Advances in Computational Mathematics, 44, no. 5, 1519-1535, 2018  
  5. O. Christensen, H.O. Kim, R.Y. Kim,  B-Spline Approximations of the Gaussian, their Gabor Frame Properties, and Approximately Dual Frames, Journal of Fourier Analysis and Applications,  24, no. 4, 1119-1140, 2018  [PDF]
  6. O. Christensen, H.O. Kim, R.Y. Kim, Characterisations of partition of unities generated by entire functions in C^d, Bulletin of the Australian Mathematical Society, 95, no. 2, 281-290, 2017
  7. O. Christensen, H.O. Kim, R.Y. Kim, On Partition of Unities Generated by Entire Functions and Gabor Frames in L2(Rd) and §¤2(Zd)Journal of Fourier Analysis and Applications,  22, no. 5, 1121-1140, 2016  [PDF]
  8. O. Christensen, H.O. Kim, R.Y. Kim, On extensions of wavelet systems to dual pairs of frames, Advances in Computational Mathematics, 42, no. 2, 489-503, 2016  [PDF]
  9. O. Christensen, H.O. Kim, R.Y. Kim, On the Gabor frame set for compactly supported continuous functions, Journal of Inequalities and Applications, 2016:94, 2016
  10. O. Christensen, H.O. Kim, R.Y. Kim, On Gabor frames generated by sign-changing windows and B-splines, Applied and Computational Harmonic Analysis, 39, no. 3, 523-544, 2015 [PDF]
  11. O. Christensen, H.O. Kim, R.Y. KimOn entire functions restricted to intervals, partition of unities, and dual Gabor frames, Applied and Computational Harmonic Analysis, 38, no. 1, 72-86, 2015  [PDF]
  12. O. Christensen, H.O. Kim, R.Y. Kim, On Parseval Wavelet Frames with Two or Three Generators via the Unitary Extension Principle, Canadian Mathematical Bulletin, 57, no.2, 254-263, 2014 [PDF]
  13. O. Christensen, H.O. Kim, R.Y. Kim, Regularity of Dual Gabor Windows, Abstract and Applied Analysis, Art. ID 747268, 8 pp, 2013  [PDF]
  14. O. Christensen, H.O. Kim, R.Y. Kim, Extensions of Bessel sequences to dual pairs of frames, Applied and Computational Harmonic Analysis, 34, no. 2, 224-233, 2013  [PDF]
  15. O. Christensen, H.O. Kim, R.Y. Kim, Gabor windows supported on [-1, 1] and dual windows with small support, Advances in Computational Mathematics, 36, no. 4, 525-545, 2012  [PDF]
  16. O. Christensen, H.O. Kim, R.Y. Kim, On the duality principle by Casazza, Kutyniok, and Lammers, Journal of Fourier Analysis and Applications, 17, no. 4, 640-655, 2011  [PDF]
  17. O. Christensen, H.O. Kim, R.Y. Kim, Gabor windows supported on [-1,1] and compactly supported dual windows, Applied and Computational Harmonic Analysis, 28, no. 1, 89-103, 2010  [PDF]
  18. O. Christensen, R.Y. Kim, On dual Gabor frame pairs generated by polynomials, Journal of Fourier Analysis and Applications, 16, no. 1, 1-16, 2010  [PDF]
  19. H.O. Kim, R.Y. Kim, Y.J. Lee, J.H. Yoon, Quasi-interpolatory Refinable Functions and Construction of Biorthogonal Wavelet Systems, Advances in Computational Mathematics, 33, no. 3, 255-283, 2010  [PDF]
  20. H.O. Kim, R.Y. Kim, J.K. Lim, New look at the constructions of multiwavelet frames, Bulletin of the Korean Mathematical Society, 47, no. 3 563-573, 2010  [PDF]
  21. H.O. Kim, R.Y. Kim, S.S. Kim, Pseudo-Butterworth refinable functions, Current Development in Theory and Applications of Wavelets, 4, no. 1, 1-38, 2010
  22. O. Christensen, H.O. Kim, R.Y. Kim, Gabor frames with reduced redundancy, SAMPTA'09, Marseille : France (2009)
  23. H.O. Kim, R.Y. Kim, J.K. Lim, Internal structure of the multiresolution analyses defined by the unitary extension principle, Journal of Approximation Theory, 154, no. 2, 140-160, 2008  [PDF]
  24. O. Christensen, R.Y. Kim, Tight matrix-generated Gabor frames in L^2(R^d) with desired time-frequency localizationJournal of Applied Mathematics and Informatics, 26, no. 5-6, 1247-1256, 2008  [PDF]
  25. R.Y. Kim, On the asymptotic convergence of orthonormal cardinal refinable functionsJournal of the Korean Society for Industrial and Applied Mathematics, 12, no. 3, 133-137, 2008
  26. H.O. Kim, R.Y. Kim, Sobolev exponents of Butterworth refinable functions, Applied Mathematics Letters, 21, no. 5, 510-515, 2008  [PDF]
  27. H.O. Kim, R.Y. Kim, J.S. Ku, An algorithm for constructing symmetric dual filters, Journal of the Korean Society for Industrial and Applied Mathematics, 11, no. 3, 21-28, 2007.  
  28. H.O. Kim, R.Y. Kim, J.K. Lim, Z. Shen,  A Pair of Orthogonal FramesJournal of Approximation Theory, 147, no. 2, 196-204, 2007
  29. H.O. Kim, R.Y. Kim, J.S. Ku, On asymptotic behavior of Battle-Lemarie scaling functions and wavelets, Applied Mathematics Letters, 20, no. 4, 376-381, 2007  [PDF]
  30. O. Christensen, H.O. Kim, R.Y. Kim, J.K. Lim, Riesz sequences of translates and generalized duals with support on [0,1], Journal of Geometric Analysis, 16, no. 4, 585-596, 2006  [PDF]
  31. O. Christensen, R.Y. Kim, Pairs of explicitly given dual Gabor frames in L^2(R^d), Journal of Fourier Analysis and Applications, 12, no. 3, 243--255, 2006  [PDF]
  32. H.O. Kim, R.Y. Kim, J.K. Lim, Characterization of the closedness of the sum of two shift-invariant spaces, Journal of Mathematical Analysis and Applications, 320, no. 1, 381--395, 2006
  33. H.O. Kim, R.Y. Kim, J.K. Lim, The infimum cosine angle between two finitely generated shift-invariant spaces and its applications,  Applied and Computational Harmonic Analysis, 19, no. 2, 253--281, 2005 
  34. O. Christensen, H.O. Kim, R.Y. Kim, J.K. Lim, Perturbation of frame sequences in shift-invariant spaces, Journal of Geometric Analysis, 15, no. 2, 181--192, 2005  [PDF]
  35. M.J. Choi, R.Y. Kim, M.R. Nam, H.O. Kim, Fusion of Multispectral and Panchromatic Satellite Images Using the Curvelet Transform, IEEE Geoscience and Remote Sensing Letters, 2, no. 2, 136--140, 2005
  36. H.O. Kim, R.Y. Kim, J.K. Lim, On the spectrums of frame multiresolution analyses, Journal of Mathematical Analysis and Applications, 305, no. 2, 528--545, 2005 
  37. H.O. Kim, R.Y. Kim, J.S. Ku, Wavelet Frames from Butterworth FiltersSampling Theory in Signal and Image Processing, 4, no. 3, 231--250, 2005
  38. M.J. Choi, R.Y. Kim, M.G. Kim, The Curvelet Transform for Image Fusion, ISTANBUL ISPRS 2004, 35, part B8, 59--64, 2004
  39. M.J. Choi, M.G. Kim, T.J. Kim, R.Y. Kim, Biorthogonal Wavelets-based Landsat 7 Image Fusion,  Proc. ACRS 2003 ISRS, 24, 494--496, 2003
  40. H.O. Kim, R.Y. Kim, J.K. Lim, Quasi-biorthogonal frame multiresolution analyses and wavelets, Advances in Computational Mathematics,18, no. 2, 269--296, 2003
  41. H.O. Kim, R.Y. Kim, J.K. Lim, Local analysis of frame multiresolution analysis with a general dilation matrix, Bulletin of the Australian Mathematical Society, 67, no. 2, 285--296, 2003
  42. H.O. Kim, R.Y. Kim, Y.H. Lee, J.K. Lim, On Riesz wavelets associated with multiresolution analyses, Applied and Computational Harmonic Analysis, 13, no. 2, 138--150, 2002
  43. H.O. Kim, R.Y. Kim, J.K. Lim, Semi-orthogonal frame wavelets and frame multi-resolution analyses, Bulletin of the Australian Mathematical Society, 65, no. 1, 35--44, 2002
  44. G.J. Chae, H.O. Kim, R.Y. Kim, On the Cohen-type conditions for the stability of shifts of a refinable function, Wavelet Anal. Appl., AMS/IP Stud. Math. 25, 67--72, 2002
  45. H.O. Kim, R.Y. Kim, J.K. Lim, MRA-wavelets and shift-invariant space of L^2 (R), Proceedings of the Workshop on Real and Complex Analysis, 98--107, 2001
  46. G.J. Chae, H.O. Kim, R.Y. Kim, Variations of Cohen's theorem, Japan Journal of Industrial and Applied Mathematics, 18, no. 3, 769--775, 2001
  47. H.O. Kim, R.Y. Kim, J.K. Lim, Characterizations of biorthogonal wavelets which are associated with biorthogonal multiresolution analyses, Applied and Computational Harmonic Analysis, 11, no. 2, 263--272, 2001