PhD, Purdue University, 1967

Control and parameter estimation for delay and partial differential equations; computational methods; statistical and mathematical methods for inverse problems; modeling in biological and physical problems.

Distinguished University Professor; Drexel Professor; SIAM W.T. and Idalia Reid Prize; IEEE Fellow; Institute of Physics Fellow; SIAM Fellow; NCSU Alumni Distinguished Graduate Professor; NCSU Alumni Outstanding Research Award; NCSU Distinguished Scholarly Achievement Award; IEEE-CSS Control Systems Technology Award; Purdue University Distinguished Alumni Award; Elected Chair, SIAM Board of Trustees (4 terms); ASME Best Paper Award; Amer. Chem. Soc Rubber Division Best Paper Award; Professeur Honoraire, Universite Compeigne, France; AFOSR Research Highlight; Turkish's Governor's Medal of Honor Award; President, NCSU Sigma Xi Society; Editorial Board, 14 journals in Applied Math and Biomath.

PhD, Northwestern University, 1970

Algebraic geometry, complex differential geometry, abstract algebra, differential geometry, algebraic number theory.

PhD, Auburn University, 1965

Gauge theory in both classical and quantum settings, supergauge theory and supermanifolds: including the fiber bundle formulations, path space formulations, and BRST cohomological formulations of these theories. Interests also include symplectic geometry and its applications to various physical theories.

NC State Outstanding Teacher Award

PhD, MIT, 1999

Algebraic and topological combinatorics.

2011 Ruth I. Michler Memorial Prize of the AWM; AMS Council Member

PhD, University of Minnesota, 2000

Geometric study of differential equations and variational problems; equivalence and symmetry problems; computational invariant theory.

PhD, Notre Dame, 1974

Algebraic topology, homotopy theory, cohomology operations.

PhD, Brown University, 1985

Dynamical systems generated by ordinary, delay, and partial differential equations; stability, bifurcation, singular perturbation.