Research Areas

1. Ordinary differential equation and dynamical system;

2. Normal form theory and its application.

Publications

1. Zhihua Ren; Peirong Wang; Yanqin Xu; Hao Wu, Formal and Analytic Normal Forms for Non-autonomous Difference Systems with uniform dichotomy spectrum, Advances in Difference Equations, 2020.

2. Guo Lingling; Ren Zhihua*; Polynomial normal forms for some germs of nonstrongly 1-resonant diffeomorphisms.Internat. J. Bifur. Chaos Appl. Sci. Engrg. 2015, 25(13), 1550174, 8 pp.

3. Ren Zhihua; Xia Li; Yang Jiazhong*; On classification of the Poincaré type maps on R3. Bull. Sci. Math. 2015,139(5): 582–598.

4. Ren Zhihua; Yan Shuo; Yang Jiazhong*; Finite determinacy and polynomial normal forms for diffeomorphisms near a strongly 1-resonant fixed point.J. Math. Anal. Appl. 2014, 413(1): 476–481.

5. Ren Zhihua*; Peng Zhaoxia; Smooth moduli-free normal forms of hyperbolic germs of diffeomorphisms. Dyn. Syst. 282013, 28(2): 251–262.

Personal Statement

Ren Zhihua is a professor and doctoral supervisor of Beijing University of Technology. She has presided two National Natural Science Foundation of China projects and has published several SCI papers on international journals.