Online Selected Papers

Papers placed here are the latest (p)reprints available. Generally speaking, the published versions should be the same, except for possible minor copyediting. However, for citations to specific results, it is advisable to check out the actual published paper, since journals sometimes change the numbering style for theorems and such.

1. " Signal reconstruction via H^∞ sampled-data control theory - beyond the Shannon paradigm," Coauthor(s): M. Nagahara and P. P. Khargonekar, IEEE Trans. Signal Processing, vol. 60, No. 2, pp. 613–625, 2012.
2. " Finite rank criteria for H^∞ control of infinite-dimensional systems," Coauthor(s): K. Kashima, IEEE Trans. Autom. Control, vol. 53, No. 4, pp. 881–893, 2008.
3. " On standard H^∞ control problems for systems with infinitely many unstable poles," Coauthor(s): K. Kashima, Systems & Control Letters, vol. 57, pp. 309–314, 2008.
4. " Minimal representations for delay systems," Proc. 17th IFAC World Congress, Seoul, Korea, pp. 1249–1254, 2008.
5. " Stability of signal reconstruction filters via cardinal exponential splines," Coauthor(s): M. Nagahara, P. P. Khargonekar, Proc. 17th IFAC World Congress, Seoul, Korea, pp. 1414–1419, 2008.
6. " Linear differential behaviors described by rational symbols," Coauthor(s): J. C. Willems, Proc. 17th IFAC World Congress, Seoul, Korea, pp. 12266–12272, 2008.
7. " Parameterization of Suboptimal Solutions of the Nehari Problem for Infinite-Dimensional Systems," Coauthor(s): K. Kashima, Hitay Ozbay IEEE Trans. Autom. Control, vol. 52, No. 12 pp. 2369–2374, 2007.
8. " New development of digital signal processing via sampled-data control theory" (Powerpoint presentation converted to PDF) International Conference on Modeling, Estimation and Control-Symposium in honor of Giorgio Picci on the occasion of his 65th birthday, Venice, Italy, October 4-5, 2007.
9. "System theory for numerical analysis," Coauthor(s): K. Kashima, Automatica, vol. 43, pp. 1156–1164, 2007.
10. "A Hamiltonian-based solution to the mixed sensitivity optimization problem for stable pseudorational plants," Coauthor(s): K. Kashima and H. Özbay, Systems & Control Letters, vol. 54, pp. 1063–1068, 2005.
11. "A new characterization of invariant subspaces of H² and applications to optimal sensitivity problem," Coauthor(s): K. Kashima, Systems & Control Letters, vol. 54, pp. 539–545, 2005.
12. "Optimal wavelet expansion via sampled-data control theory," Coauthor(s): K. Kashima and M. Nagahara, IEEE Signal Processing Letters, vol. 11, no. 2, pp. 79–82, 2004.
13. "Lecture at the Mittag-Leffler Institute," (Powerpoint file converted to PDF) Institut Mittag-Leffler, April 22, 2003.
14. "Optimizing FIR approximation for discrete-time IIR filters," Coauthor(s): B. D. O. Anderson and M. Nagahara, IEEE Signal Processing Letters, vol. 10, no. 9, pp. 273–276, 2003.
15. "Equivalent Characterization of Invariant Subspaces of H² and Applications to Optimal Sensitivity Problem," Coauthor(s): K. Kashima, submitted to CDC 2003.
16. "Approximating sampled-data systems with applications to digital redesign," Coauthor(s): B. D. O. Anderson and M. Nagahara, Proc. CDC 2002, Las Vegas, 2002.
17. "Coprimeness conditions for pseudorational transfer functions," Proc. MTNS 2002, Notre Dame, 2002.
18. "Optimal wavelet expansion via sampled-data control theory," Coauthor(s): K. Kashima and M. Nagahara, 40th IEEE CDC, Orlando, pp. 4788–4793, 2001.
19. "An Overview on Repetitive Control — what are the issues and where does it lead to?," (Plenary Lecture at the Periodic Control Workshop, 2001) (Powerpoint file converted to PDF) IFAC Workshop on Periodic Control Systems, Como, Italy, August 27-28, 2001.
20. "Boyd Pearson Anniversary Workshop Lecture," (Powerpoint file converted to PDF) Rice University, March 9-10, 2001.
21. "A Hamiltonina-based solution to the two-block H^∞ problem for general plants in H^∞ and rational weights," Coauthor(s): K. Hirata and A. R. Tannenbaum, Systems & Control Letters, vol. 40, pp. 83–95, 2000.
22. "Multirate signal reconstruction and filter design via sampled-data H^∞ control," Coauthor(s): M. Nagahara and H. Fujioka, MTNS 2000, Perpignan, France, 2000.
23. "A new design for sample-rate converters," Coauthor(s): M. Nagahara, 39th IEEE CDC, Sydney, pp. 4296–4301, 2000.
24. "Digital control," Wiley Encyclopedia of Electrical and Electronics Engineering, vol. 5, no. , pp. 445–457, 1999.
25. "Computation of the singular values of Toeplitz operators and the gap metric," Coauthor(s): K. Hirata and A. R. Tannenbaum, Systems & Control Letters, vol. 36, pp. 327–338, 1999.
26. "Approximation of frequency response for sampled-data control systems," Coauthor(s): A. G. Madievski and B. D. O. Anderson, Automatica, vol. 35, no. 4, pp. 729–734, 1999.
27. "Frequency response of sampled-data systems," Coauthor(s): P. P. Khargonekar, IEEE Trans. Autom. Control, vol. AC-41, pp. 166–176, 1996.
28. "A retrospective view on sampled-data control systems," CWI Quarterly, vol. 9, no. 3, pp. 261–276, 1996.
29. "Some remarks on Hamiltonians and the infinite-dimensional one block H^∞ problem," Coauthor(s): K. Hirata and A. R. Tannenbaum, Systems & Control Letters, vol. 29, pp. 111–117, 1996.
30. "A function space approach to sampled-data control systems and tracking problems," IEEE Trans. Autom. Control, vol. AC-39, pp. 703–712, 1994.
31. "Frequency responses for sampled-data systems — their equivalence and relationships," Coauthor(s): M. Araki, Linear Algebra and Its Applications, vol. 205–206, pp. 1319–1339, 1994.
32. "Learning control and related problems in infinite-dimensional systems," (Plenary Lecture at 2nd European Control Conference, 1993) Essays on Control: Perspectives in the Theory and its Applications, Ed. by H. L. Trentelman and J. C. Willems, pp. 191–222, Birkhäuser, 1993.
33. "On the state space and frequency domain characterization of H^∞-norm of sampled-data systems," Systems & Control Letters, vol. 21, pp. 163–172, 1993.
34. "Internal and external stability and robust stability condition for a class of infinite-dimensional systems," Coauthor(s): S. Hara, Automatica, vol. 28, pp. 81–93, 1992.
35. "Equivalence of internal and external stability for a class of distributed systems," Math. Control Signals and Systems, vol. 4, pp. 391–409, 1991.
36. "A polynomial matrix method for computing stable rational doubly coprime factorizations," Coauthor(s): K. Sugimoto, Systems & Control Letters, vol. 14, pp. 267–273, 1990.
37. "Reachability of a class of infinite-dimensional linear systems: an external approach with applications to general neutral systems," SIAM J. Control and Optimization, vol. 27, no. 1, pp. 217–234, 1989.
38. "On successive pole assignment by linear-quadratic optimal feedbacks," Coauthor(s): K. Sugimoto, Linear Algebra and Its Applications, vol. 122–124, pp. 697–723, 1989.
39. "On the existence of approximately coprime factorizations for retarded systems," Coauthor(s): E. D. Sontag, Systems & Control Letters, vol. 13, pp. 53–58, 1989.
40. "Relationships between internal and external stability for infinite-dimensional systems with applications to a servo problem," Coauthor(s): S. Hara, IEEE Trans. Autom. Control, vol. AC-33, no. 11, pp. 1044–1052, 1988.
41. "Pseudo-rational input/output maps and their realizations: a fractional representation approach to infinite-dimensional systems," SIAM J. Control and Optimization, vol. 26, no. 6, pp. 1415–1430, 1988.
42. "Repetitive control system: A new type servo system for periodic exogenous signals," Coauthor(s): S. Hara, T. Omata and M. Nakano, IEEE Trans. Autom. Control, vol. AC-33, no. 7, pp. 659–668, 1988.
43. "Realization theory of infinite-dimensional linear systems, Parts I and II," Mathematical Systems Theory, vol. 15, pp. 55–77 & pp. 169–190, 1981 & 1982.