题目：Improvement of flatness and De Giorgi conjecture

报告人：王克磊 （武汉大学）

时间：2015年5月8日（周五）下午 2：30―4:00

地点：管研楼 1318

摘要：Improvement of flatness estimates play an important role in the regularity theory for various elliptic problems. One main ingredient, which goes back to De Giorgi, is to approximate nonlinear problems by linear ones such as harmonic functions. In this talk I will report some generalizations of this classical method to singular perturbation problems of semilinear elliptic equations, and show how to use this estimate to prove De Giorgi type conjectures.

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