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EducationSc.D. (1967) Columbia University Research Area: Nonlinear dynamicsMy research involves using perturbation methods and bifurcation theory to obtain approximate solutions to differential equations arising from nonlinear dynamics problems in engineering and biology. Current projects involve differential delay equations, quasiperiodic forcing in Mathieu’s equation and dynamics of coupled oscillators. Applications include MEMS (micro electrical mechanical systems), effects of biorhythms on retinal dynamics, dynamics of gene copying, and cardiac arrythmias. These projects are conducted jointly with graduate students and with experts in the respective application area.Selected PublicationsLecture Notes on Nonlinear Vibrations, version 52, 2005. Analysis of frequency locking in optically driven MEMS resonators (with M. Pandey, K. Auburn, M. Zalalutdinov, R. B. Reichenbach, A. T. Zehnder, and H. G. Craighead), J. Microelectromechanical Systems 15 (2006), 1546–1554. The damped nonlinear quasiperiodic Mathieu equation near 2:2:1 resonance (with N. Abouhazim and M. Belhaq), Nonlinear Dynamics 45 (2006), 237–247. Dynamics of three coupled van der Pol oscillators with application to circadian rhythms (with K. Rompala and H. Howland), Communications in Nonlinear Science and Numerical Simulation 12 (2007), 794–803. Hopf bifurcation formula for first order differential-delay equations (with A. Verdugo), Communications in Nonlinear Science and Numerical Simulation 12 (2007), 859–864. Stability of strongly nonlinear normal modes (with G. Recktenwald), Communications in Nonlinear Science and Numerical Simulation 12 (2007), 1128–1132. Perturbation analysis of entrainment in a micromechanical limit cycle oscillator (with M. Pandey and A. Zehnder), Communications in Nonlinear Science and Numerical Simulation 12 (2007), 1291–1301.Last modified: May 23, 2007 |