Avner Friedman

The Ohio State University

Primary Section: 32, Applied Mathematical Sciences
Secondary Section: 11, Mathematics
Membership Type: Member (elected 1993)

Research Interests

My primary research is in partial differential equations (PDE). Many of the problems I deal with are called free boundary problems: One wants to solve a PDE in a domain, subject to boundary condition, while the boundary of this domain is not known in advance. Such situations arise in phase transition, tumor growth, film growth in semiconductor processing, propagation of cracks in elastic media, contact problems in elasticity, etc. I am also interested in finding properties of solutions to PDE, which are nonlinear and degenerate, and, in particular, in the blow-up of solutions of parabolic equations with nonlinear forcing terms. Another aspect of my work deals with homogenization: This situation arises when there are large oscillation in the medium, where one seeks to solve differential equations. Other areas of research include stochastic differential equations and control theory.

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