关于举行韩永生教授、Steinar Evje教授学术报告的通知

报告题目1：Cauchy Integral, Calderon Conjecture and Boundary Value Problem on Lipschitz Domains

报 告 人：韩永生教授（美国奥本大学）

报告时间： 2015年6月3日下午3:30-4:30

报告题目2：Some examples of two-fluid modelling

报 告 人：Steinar Evje教授（挪威斯塔万格大学）

报告时间： 2015年6月3日下午4:30-5:30

报告地点：4号楼 4141室

欢迎广大师生参加。              

                                          数学学院

                                    2015年5月27日

报告摘要1：Abstract. We will illustrate a classical problem, that is the solution, by the double-layer potential method, of the Dirichlet and Neumann problems for a domain  in Rn+1. When  is a bounded, regular, open set, say C1+_ class for some _ > 0; the operator studied is compact, so Fredholm theory allows one to solve the problem. When  is just of class C1, or of class Lipschitz, the operator is a singular integral. Calder_on's research programme was to solve this problem. In this talk, we describe how this problem was solved by Calder_on, Coifman, McIntosh, Meyer, Verchota, Dalhberg and Kenig.

报告摘要2：

In this talk we start with a basic formulation for two-fluid gas-liquid flow. In order to
motivate for further work on mathematical analysis of the compressible two-fluid model, we briefly discuss four different applications of the two-fluid model:
two examples from fluid mechanics and two examples from life science (study of living organisms).