Stewart D. Johnson, Professor of Mathematics

206 Bronfman Science Ctr


 Professional Interests

 Biographical Information

Professional Interests

Dynamical Systems, Differential Equations, Modeling, Control & Optimization.

Recent Work:

Optimality of Stasis and Small Switching Cycles in Planar Systems with Two-Valued Controls

SIAM Journal of Control and Optimization, Vol 43 No 6, pp 1987-1999.

Efficacy and Safety of Galantamine in Patients with Dementia with Lewy Bodies: A 12-Week Interim Analysis

With K Edwards, L Hershey, L Wray, EM. Bednarczyk, D Lichter, and M Farlow; Dementia and Geriatric Cognitive Disorders 2004;17 (Suppl. 1)


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Biographical Information


Ph.D. in Mathematics June 1985, Stanford University, Stanford, California.

B.A. in Mathematics with a concentration in Computer Science, Summa Cum Laude, August, 1979, Fort Lewis College, Durango, Colorado.


Department of Mathematics, Williams College, July 1990 to Present.

Visiting Assistant Professor, Department of Mathematics, Boston University, September 1989 to June 1990.

Visiting Member, Institute for Advanced Study, Princeton, September 1988 to August 1989.

Postdoctoral Fellow, Mathematical Sciences Institute, Cornell University, August 1986-August 1988.

Postdoctoral Appointment, University of California, Santa Cruz, January 1986-June 1986.

Instructor, Stanford University, September 1985 - January 1986.

Graduate Fellow, Teaching Fellow, and Instructor in Mathematics, Stanford University, September 1979-September 1985.


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Last Revised: Aug 6, 2005