The numerical analysis group at OSU focuses mainly on the study of numerical methods for partial differential equations. Topics we have been working on include continuous and discontinuous Galerkin methods, the finite volume methods, a priori and a posteriori error estimations, least squares methods, various preconditioning techniques, and numerical implementations. We also have extended interests in other related topics such as finite difference methods, numerical linear algebra, and largescale computing. Accurate and efficient numerical methods can be used to successfully simulate many complicated physical processes in areas such as solid and fluid mechanics, surface sciences, electromagnetism, and mathematical finance, etc.
Research Interests  

Associate Professor 
Ph.D., Indiana, 1999. Applied mathematics.

Professor 
Ph.D., Cornell, 2004. Numerical analysis. 
Xu Zhang Assistant Professor 
B.S./M.S., Sichuan University; Ph.D., Virginia Tech, 2013. Dr. Zhang's research is on numerical analysis and scientific computing. In particular, he is interested in numerical methods for partial differential equations. Recently, his research focuses on immersed finite element methods for interface problems including algorithm development, implementation, error analysis, and engineering applicatons.
