报告题目：Dual exponential polynomials and linear diferential equations

主讲人：Prof.Janne Heittokangas

主持人：李叶舟

报告时间：2017年8月16日（周三）上午10：30—11：30

报告地点：主楼1214

报告摘要：

We study linear diferential equations with exponential polynomial coeffcients, where exactly one coeffcient is of order greater than all the others. The main result shows that a nontrivial exponential polynomial solution of such an equation has a certain dual relationship with the maximum order coe_cient. Several examples illustrate our results and exhibit possibilities that can occur.This presentation is based on a very recent joint work with Gary Gundersen and Zhi-Tao Wen.

报告人简介：

Prof.Heittokangas Janne, PHD Supervisor, University of Eastern Finland. Research interests are mainly in value distribution theory of meromorphic functions and the oscillation theory of complex differential equations.