Liu Dongyi
School
School of Mathematics
Professional Title
Associate professor
Contact Information
dyliu@tju.edu.cn
Brief Introduction
Dongyi Liu (刘东毅,Liu Dong Yi (in PinYin)).
Ph.D, Associate professor of Mathematical Department,The Science School of Tianjin University.
Visiting scholar at the Department of Computer Science,The College of Staten Island, CUNY, from 2014.9 to 2015.8.
Reviewer of Math Review.
Academic interests are currently focused on Distributed Parameter Systems (esp. controls on PDEs’ networks), Mathematical Optimization (esp. optimization algorithms) and Mathematical Problems in Engineering.
Education Background
- Master’s Degree| Hebei University of Technology| Applied Mathematics| 1997
- Doctoral degree| Tianjin University| Control Theory and Control Engineering| 2010
- Bachelor’s Degree| Hebei Normal University| Pure Mathematics| 1992
Research Interests
- Mathematical Optimization, esp. optimization algorithms
- Distributed Parameter Systems, esp. controls on PDEs' networks
Positions & Employments
-
2014.9-2015.8
Department of Computer Science | The College of Staten Island, CUNY | Visiting scholar  -
1997.7-2017.9
School of Mathematics | Tianjin University  -
1992.7-1994.8
 Langfang Vocational Education Center | Teacher 
Academic Achievements
- Papers
- [1] Descent Symmetrical Polak-Ribiere-Polyak Conjugate Gradient Method
- [2] Spectral method and its application to the conjugate gradient method
-
- [3] Symmetric Perry conjugate gradient method
- [4] Applying Powell's symmetrical technique to conjugate gradient methods
- [5] Design of controllers and compensators of a serially connected string system and its Riesz basis
- [6] Abstract second order hyperbolic system and applications to controlled network of strings
- [7] Exponential stability of string system with variable coefficients under non-collocated feedback controls, Asian Journal of Control, 2011,
- [8] Riesz Basis and Stability Analysis of the Feedback Controlled Networks of 1-D Wave equations
- [9] Super-stability and the spectrum of one-dimensional wave equations on general feedback controlled networks
- [10] Stabilization of one-dimensional wave equations coupled with an ODE system on general tree-shaped networks
- [11] Stabilization of Timoshenko beam system with a tip payload under the unknown boundary external disturbances
- [12] Stabilization of the Timoshenko Beam System with Restricted Boundary Feedback Controls
- Books
- [1] 科学计算技术与Matlab