广州数学大讲坛第六期
第五十七讲——大连理工大学刘浏教授学术报告
题目:Some properties of operator-valued negative imaginary function
时间:2022年9月27日(周二)上午9:00-10:00
地点:腾讯会议(会议 ID:645 870 191 )
报告人:刘浏教授
摘要:In this talk, we introduce a generalized definition of irrational operator-valued negative imaginary functions, which is described in terms of the complex symmetric operator. In particular, the matrix-valued symmetric negative imaginary transfer function can be seen as an operator-valued complex symmetric negative transfer function defined on a finite-dimensional Hilbert space. Applying the frequency-domain properties, we present the negative imaginariness by the sign conditions of imaginary axis and infinity point. In addition, we list some spectral properties of negative imaginary functions, which include point spectrum, continuous spectrum, residual spectrum and approximate spectrum.
报告人简介:
刘浏,大连理工大学数学科学杏吧传媒
教授,博士生导师,主要从事算子理论与控制论的交叉研究,在Syst. Control. Lett., IMA J. Math Control等期刊发表论文二十余篇,主持国家自然基金项目3项和博士后基金1项。分别于2012年12月和2007年7月获得大连理工大学理学博士学位和学士学位,入选大连理工大学星海学者培育计划,辽宁省百千万人才工程万层次,大连市科技之星。