Biographical
Information:
Heinz Schaettler
received a master's degree in Mathematics (DiplomMathematiker)
from the University of Wuerzburg in Germany in 1982 and a doctorate in Mathematics
from Rutgers University in 1986. After
holding a one year position as postdoctoral fellow and visiting assistant
professor at the University of CaliforniaDavis, he joined Washington University
in 1987 as Assistant Professor in the Department of Systems Science and
Mathematics where he was promoted to Associate Professor in 1993. Since 2003
he is a member of the newly formed Department of Electrical and Systems
Engineering.
Research Interests:
Geometric methods in the theory of nonlinear systems with a
strong concentration
in optimal control theory.
Currently the focus of his research is on
 synthesis type sufficient conditions for
optimality in optimal control problems with statespace constraints
(method of characteristics)
 applications of
optimal control methodology in mathematical models for biomedical
problems (joint work with U. Ledzewicz),
including models for cancer
chemotherapy and antiangiogenic treatments
Past research activities include:
 clustering in
electric power systems (joint work with A. Ozcan,
I. Genc and J. Zaborszky)
 stability of general
nonlinear systems modeled by differentialalgebraic
systems with applications to angle and voltage stability for the
large electric power system (joint work with J. Zaborszky,
V. Venkatasubramanian, X. Jin, and K. Kim)
 highorder approximations to nonregular
equality constraints and corresponding necessary conditions for
optimality (joint work with U. Ledzewicz)
 the method of characteristics and regular
synthesis in optimal control theory (joint work with M. Kiefer and J.
Noble)
 the structure of
smalltime reachable sets for nonlinear controllinear systems
 principalagent
problems (joint work with J. Sung)
 elliptic optimal
control problems (joint work with S. Walczak
and U. Ledzewicz)

