报告人：Nikolas
时 间：2019年5月21日下午 15:30-16:30
地点：华南数学应用与交叉研究中心学术报告厅111
题目：Neumann Problems with Convection
摘要：
We consider a semilinear Neumann problem with convection.We assume that the drift coefficient is indefinite using the theory of nonlinear operator of monotone type together with truncation and comparison techniques and flow invariance arguments,we prove a multiplicity theorem producing three nontrivial smooth solutions with sign information(positive,negative,nodal)