Wei-Ming Ni

Wei-Ming Ni (Chinese: 倪維明; born 23 December 1950) is a Taiwanese mathematician at the University of Minnesota and the Chinese University of Hong Kong, and the former director of the Center for PDE at the East China Normal University. He works in the field of elliptic and parabolic partial differential equations. He did undergraduate work at National Taiwan University and obtained his Ph.D. at New York University, in 1979, under the supervision of Louis Nirenberg. He is an editor-in-chief of the Journal of Differential Equations, and was an ISI Highly Cited Researcher in 2002. As said by the journal Discrete and Continuous Dynamical Systems:

[Ni] first became a household name in the PDE community when he published with Gidas and Nirenberg the seminal paper in 1979, “On the symmetry of positive solutions of nonlinear elliptic equations” [...] The research and expository work of Professor Ni has influenced the research directions and activities of a large number of mathematicians, many of whom are playing important roles in the field of partial differential equations today.

• Gidas, B.; Ni, Wei Ming; Nirenberg, L. Symmetry and related properties via the maximum principle. Comm. Math. Phys. 68 (1979), no. 3, 209–243.
• Gidas, B.; Ni, Wei Ming; Nirenberg, L. Symmetry of positive solutions of nonlinear elliptic equations in ℝ. Mathematical analysis and applications, Part A, pp. 369–402, Adv. in Math. Suppl. Stud., 7a, Academic Press, New York-London, 1981.
• Lin, C.-S.; Ni, W.-M.; Takagi, I. Large amplitude stationary solutions to a chemotaxis system. J. Differential Equations 72 (1988), no. 1, 1–27.
• Ni, Wei-Ming; Takagi, Izumi. On the shape of least-energy solutions to a semilinear Neumann problem. Comm. Pure Appl. Math. 44 (1991), no. 7, 819–851.
• Lou, Yuan; Ni, Wei-Ming. Diffusion, self-diffusion and cross-diffusion. J. Differential Equations 131 (1996), no. 1, 79–131.
• Ni, Wei-Ming. Diffusion, cross-diffusion, and their spike-layer steady states. Notices Amer. Math. Soc. 45 (1998), no. 1, 9–18.