个人简介

在“Science China Math.”“J. Differential Equations”等知名期刊上发表论文三十多篇。主持国家自然科学基金2项、宁夏重点研发计划项目1项、宁夏自然科学基金3项(优青1项)、宁夏一流本科课程“数学分析”建设1项。曾获教育部霍英东教育基金会高等院校青年科学二等奖、宁夏自然科学优秀学术论文一等奖、全国教育专业学位教学成果二等奖(排名第3)、宁夏高校教师教学创新大赛三等奖、宁夏高校青年教师教学竞赛三等奖等。现为美国数学会《Mathematical Review》和德国数学文摘《Zentralblatt MATH》评论员。

个人成果

论文

1.Yang Jihua. On the number of limit cycles for a perturbed cubic reversible Hamiltonian system. Chaos, 2024, 34(10):0211447.

2. Yang Jihua. The limit cycle bifurcations of a whirling pendulum with piecewise smooth perturbations. Acta Math. Scientia，2024,44B(3): 1115-1144.

3. Yang Jihua, Zhao Liqin. Bifurcation of limit cycles of a piecewise smooth Hamiltonian system. Qual. Theory Dyn. Syst., 2022, 21:142.  

4. Yang Jihua. Bifurcation from periodic orbits of n-dimensional piecewise smooth differential systems with two switching planes. Intern. J. Bifurcat. Chaos, 2022, 32(9):2250135.  

5. Yang Jihua. On the number of limit cycles of a pendulum-like equation with two switching lines. Chaos, Solitons, Fractals, 2021,150:111092.

6. Yang Jihua. Bifurcation of limit cycles of the non-generic quadratic reversible system with discontinuous perturbations. Science China Math., 2020,63(5):873-886.

7. Yang Jihua. Limit cycles appearing from the perturbation of differential systems with multiple switching curves. Chaos, Solitons, Fractals, 2020,135:109764.  

8. Yang Jihua, Zhao Liqin. Bounding the number of limit cycles of discontinuous differential systems by using Picard-Fuchs equations. J. Differ. Equations, 2018, 264:5734-5757.  

9. Yang Jihua, Zhao Liqin. The cyclicity of period annuli for a class of cubic Hamiltonian systems with nilpotent singular points. J. Differ. Equations, 2017, 263: 5554-5581.  

科研项目

1.2018.1-2020.12，国家自然科学基金青年项目，可积微分系统的极限环分支；

2.2022.1-2025.12，国家自然科学基金地区项目，具有多个切换流形的非光滑微分系统的极限环分支；

3.2016.1-2018.12，宁夏重点研发计划项目，时滞金融模型的动力学研究及数值仿真