# Qing Han

Professor

B.S., Beijing University, 1986

M.S., Courant Institute, 1991

Ph.D., Courant Institute, 1993

Email: Qing.Han.7@nd.edu

Office: 228 Hayes-Healy

Phone: (574) 631-6834

Fax: (574) 631-6579

For additional information see Qing Hanâ€™s Personal Page.

**Research Interests**

Partial differential equations and differential geometry.

**Selected Publications**

- Q. Han, R. Hardt & F.-H. Lin, Geometric measure of singular sets of elliptic equations, Comm. Pure Appl. Math., 51(1998), 1425-1443.

- Q. Han, N. Nadirashvili & Y. Yuan, Linearity of homogeneous order one solutions to elliptic equations in dimension three, Comm. Pure Appl. Math., 56(2003), 425-432.

- Q. Han, J.-X. Hong & C.-S. Lin, Local isometric embedding of surfaces with nonpositive Gaussian curvature, J. Diff. Geometry, 63(2003), 475-520.

- Q. Han, On the isometric embedding of surfaces with Gauss curvature changing sign cleanly, Comm. Pure Appl. Math., 58(2005), 285-295.

- Q. Han & J.-X. Hong, Isometric Embedding of Riemannian Manifolds in Euclidean Spaces, Mathematical Surveys and Monographs, Volume 130, American Mathematical Society, Providence, RI, 2006.

Please direct questions and comments to: Qing.Han.7@nd.edu