Brian Hassard

Applied mathematics, bifurcation theory, precise numerical algorithms. 

Du ZD, Hassard B, Precise computation of Hopf bifurcation and two applications, Dynamics of Continuous and Discrete Impulsive Systems A 8, 495-518 (2001).

Hassard B, An unusual Hopf bifurcation: The railway bogie, Int J Bifurcat Chaos 10 503-507 (2000) 

Jeng JH, Hassard B, The critical wave number for the planar Benard problem is unique, Int J Nonlinear Mech 34 221-229 (1999) 

Hassard BD, Counting roots of the characteristic equation for linear delay-differential systems, J Differ Equations 136 222-235 (1997) 

Hassard B, Shiau LJ, A special point of Z(2)-codimension three Hopf bifurcation in the Hodgkin-Huxley model, Appl Math Lett 9 31-34 (1996)