• Source: Sivaguru S. Sritharan

Sivaguru S. Sritharan (also known as S. S. Sritharan) is an American aerodynamicist and mathematician.
Sritharan served in civilian universities such as University of Southern California and University of Wyoming as faculty member and head of the department and also in the Department of Defense (U. S. Navy and U. S. Air Force) in various capacities ranging from scientist to leadership roles, and also held visiting positions at several international institutions.
He served as the vice chancellor at the Ramaiah University of Applied Sciences in Bengaluru, India.




Education


Sritharan had his high schooling at Jaffna Central College. He then joined at University of Sri Lanka (Peradeniya) and obtained a BSc (Honors) degree in mechanical engineering. He obtained a Master of Science degree in aeronautics and astronautics from University of Washington and a master's degree and Ph.D. in applied mathematics from University of Arizona.




Career


Sritharan served as the first provost and vice chancellor of the Air Force Institute of Technology at Dayton, Ohio and as the dean of the Graduate School of Engineering and Applied Sciences at the Naval Postgraduate School, Monterey, California.
He was a professor and head of the Department of Mathematics at University of Wyoming and head of the Science and Technology Branch at the Naval Information Warfare Systems Command in San Diego.




Contributions


Sritharan is known for his research contributions in rigorous mathematical theory, optimal control and stochastic analysis of fluid mechanics and magneto-hydrodynamics.
His notable contributions include:
1. Developing dynamic programming method for the equations of fluid dynamics. This subject is closely related to reinforcement learning in the language of machine learning.
2. First complete proof of the Pontryagin’s Maximum Principle for fluid dynamic equations with state constraints, as a joint work with UCLA mathematician Hector. O. Fattorini.
3. Developing robust (H-infinity) control theory for fluid dynamics as a joint work with Romanian mathematician Viorel P. Barbu.
4. First successful rigorous theory establishing a direct stochastic analogy to the famous Jacques-Louis Lions and G. Prodi (1959) on existence and uniqueness theorem for the two dimensional Navier-Stokes equation as a joint work with J. L. Menaldi utilizing a subtle local monotonicity property.
5. Proving Large Deviation Principle for stochastic Navier-Stokes equation as a joint work with P. Sundar to estimate the probability of rare events.




Bibliography


Sritharan, S.S. (2019), Invariant Manifold Theory for Hydrodynamic Transition, Courier Dover Publications, ISBN 9780486828282
Sritharan, S.S. (1998), Optimal Control of Viscous Flow, SIAM, ISBN 9780898714067




References

Kata Kunci Pencarian:

• Sivaguru S. Sritharan
• Air Force Institute of Technology
• Jaffna Central College
• H-infinity methods in control theory