报告题目：Periodic solutions for second order periodic differential equations under scalable control

报告时间：2020年11月20日9:00-11:00

报告地点：腾讯会议598 631 099

报告摘要：

Second order periodic differential equations such as the Hill’s equation are used to model damped oscillators, vibrating elliptical drumheads, rotating electric dipoles, etc. and existence of periodic solutions are important. In this paper we study second order equations subject to ‘adjustable’ feedback control functions with delays. Based on the fixed point theorem for an ordered Banach space, the existence, multiplicity, and the nonexistence of periodic solutions for our equation are obtained. The uniqueness of periodic solutions and the dependence of periodic solutions on the adjustable scale factor are also studied.

报告人简介：

康淑瑰，84年毕业于williamhill官网数学系，98年获得北京师范大学硕士，2008年获得海军航空大学博士；研究微分方程定性理论。现任山西大同大学二级教授，williamhill官网、中北大学、太原师范学院兼职硕士生导师；2019年获得山西省教科文卫体系统五一劳动奖章、“三晋英才”拔尖骨干人才，2015年获得山西省高校“131”领军人才优秀中青年拨尖创新人才，2014年获得山西省教学名师；主持国家自然科学基金面上项目2项、省级项目多项。曾获得山西省科学技术奖二等奖、山西省优秀教学成果二等奖。