报告题目二：Stability of orthogonally Jensen type quadratic functional equations in Hilbert modules

主讲人：Choonkil Park教授（韩国汉阳大学）

报告时间：2025年10月23日下午15:40-17:40

报告地点：数理楼221

报告摘要：This talk explores the Hyers-Ulam stability of orthogonally Jensen type quadratic functional equations in Hilbert spaces and Hilbert modules, showing that approximately satisfying mappings have a unique exact approximating counterpart within a specific bound. This study is a joint work with Prof. Mi Young Kang.

主讲人简介：Choonkil Park has accomplished his doctoral degree in Mathematics from the University of Maryland and is currently working as a professor at Hanyang University. He is working for several journals such as Journal of Nonlinear Science and Applications and Journal of Computational Analysis and Applications as the associate editors. His main research topics include operator algebras, functional inequalities, functional equations, non-commutative geometry, fixed point theory and fuzzy mappings. He has published a number of academic articles on international journals related to operator algebras, functional inequalities, functional equations, non-commutative geometry, fixed point theory and fuzzy mappings. Within the last twenty years, he has successfully published more than 650 articles on SCI-E journals.