People at UWO Applied Mathematics

Pei Yu
Professor

Department of Applied Mathematics University of Western Ontario Middlesex College, Room 283 London, ON, Canada N6A 5B7 tel: (519) 661-2111 ext. 88783 fax: (519) 661-3523 email: pyu@uwo.ca web: http://pyu1.apmaths.uwo.ca/ Ph.D. Waterloo, 1986 M.A.Sc. Waterloo, 1984; B.Sc. Shanghai Jiao Tong U., 1982

Research Interests

• Nonlinear systems and chaotic dynamics
• Normal form theory of differential equations
• Limit cycles and Hilbert's 16 problem
• Stability, bifurcation control and chaos control
• Biological mathematic and financial mathematics
• Information theory and Cryptography based chaos

Representative Publications

• P. Yu and F. Xu, " A common phenomenon in chaotic systems linked by time delay," Int. J. Bifurcation & Chaos, 16(12), 3727-3736, 2006.
• Z. Chen and P. Yu, " Double-Hopf bifurcation in an oscillator with external forcing and time-delayed feedback control," Int. J. Bifurcation & Chaos, 16(12), 3523-3537, 2006.
• P. Yu and X. Liao, " Globally attractive and positive invariant set of the Lorenz system," Int. J. Bifurcation & Chaos, 16(3), 757-764, 2006.
• P. Yu and Z. Wu, " An exact solution to the stabilization of discrete systems using a first-order controller," IEEE Trans. on Automatic Control, 50 (9), 1375-1379, 2005.
• P. Yu and M. Han, " Small limit cycles bifurcating from fine focus points in cubic order Z_2-equivariant vector fields," Chaos, Solitons and Fractals, 24(1), 329-348, 2005.
• P. Yu and G. Chen, " Hopf bifurcation control using nonlinear feedback with polynomial functions," Int. J. Bifurcations & Chaos, 14(5), 1683-1704, 2004.
• P. Yu and A.Y.T. Leung, " The simplest normal form of Hopf bifurcation," Nonlinearity, 16(1), 277-300, 2003.