演讲者：楼红卫（复旦大学）
时间：2019-03-01 15:00-16:00
地点：慧园3栋 518报告厅
Abstract: The maximization/Minimization of the principal eigenvalues of elliptic operators is considered. A relaxed formulation of this problem is considered for composite materials with a volume constraint in the view of control theory. It is founded that the maximizer/minimizer can also be got by convexifying the original problem in usual method.
