报告题目:Bohr's Inequality
报 告 人:Saminathan Ponnusamy(IIT,Madras)
报告时间:2025年4月3日(周四)14:30-16:00
报告地点:数学研究中心报告厅(528)
报告摘要:
In this talk, we first recall the classical Bohr inequality for bounded analytic functions in the unit disk, and rephrase it in the distance form making the Bohr inequality more natural while addressing Bohr's phenomenon in a general setting. Also, few refined and generalized versions of Bohr-type inequality in terms of subordination and quasi-subordination will be addressed. Finally, Bohr inequality with a change of basis, by replacing the monomials typically used in the power series representations of the functions involved in the Bohr sum, will be derived which will lead study the Bohr inequality for certain operators on function spaces. Its associated version for harmonic mappings will be indicated at the end along a couple of recently solved open problems on this topic.
报告人简介:
Saminathan Ponnusamy,印度国家科学院院士、印度理工学院马德拉斯分校讲座教授(该讲座教授是印度理工大学颁发授予全职教学人员中拥有崇高学术地位或重大研究成就的教授名衔)、印度拉马努金数学会主席。2002年获加拿大世界教育基金会颁发的钱达纳数学奖,该奖励用于表彰对国际数学研究和教学做出杰出贡献的学者。2003年获印度泰米尔纳德邦科学家奖,该奖励用于表彰对印度的数学科学研究与教学做出突出贡献的科学家。Ponnusamy教授是国际知名的复分析领域专家,在单叶函数理论、特殊函数、拟共形映射和调和映射等方面做了许多重要工作,解决了多个数学猜想或公开问题,在《Adv. Math.》《Math. Ann.》《Math. Comput.》《J. London Math. Soc.》等国际数学权威期刊发表学术论文300余篇,出版《Foundations of Complex Analysis》《Foundations of Functional Analysis》等学术专著5部,并担任多个SCI期刊的编委。