Professor Tong YANG

PolyU Scholars Hub

Chair Professor of Mathematical Science

Foreign Member of the Academia Europaea
Member of the World Academy of Sciences
Foreign Member of the European Academy of Sciences
Member of the Hong Kong Academy of Sciences
American Mathematical Society Fellow
RGC Senior Research Fellow

Full academic bio

PolyU Scholars Hub

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Professor Tong YANG is a Chair Professor of Mathematical Science at The Hong Kong Polytechnic University and a highly distinguished scholar in the field of Partial Differential Equations and Kinetic Theory. He has been pursuing research excellence in mathematics for about 30 years. Professor Yang has been honoured with numerous awards and distinctions in recognition of his outstanding contributions, including being elected as a Foreign member of Academia Europaea in 2022 and a member of The Hong Kong Academy of Sciences in 2021. He has authored over 200 SCI journal papers, some of which have been published in top journals in mathematics.

Partial differential equations (PDEs) apply to many areas of science and daily life, so establishing a theory using appropriate mathematical terminology is both exciting and can be quite challenging.

Professor Tong YANG

In recent years, Professor Yang's groundbreaking research has focused on the mathematical theory of boundary layers and high Reynolds number limits. Indeed, Professor Yang and his collaborators have established the well-posedness of the Prandtl equation in Sobolev space with Oleinik’s monotonicity condition and in optimal Gevrey function space without any structural assumptions. Furthermore, Professor Yang and his colleague Dr Zhu Zhang have developed an innovative analytical approach to examine the inherent stability mechanism of shear flow profiles featuring robust boundary layers, ultimately deriving the Orr-Sommerfeld equation in a compressible setting.

YANG Tong_text_pic

In addition to his academic accomplishments, Professor Yang is deeply committed to serving the mathematical community and in promoting mathematical science in Hong Kong and beyond. He has served as the President of the Hong Kong Mathematical Society from 2016 to 2020 and as an officer of the Mathematics Division, European Academy of Sciences from 2019 to 2023. Currently, he is a member of the Programme Committee for the Future Science Prize Week 2023.

Research Interests

Well-posedness Theory of Partial Differential Equations derived from Fluid Dynamics

High Reynolds Number Limit

Boundary Layer Theory

Kinetic Theory

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Professor Tong YANG

Research Interests