苏喜锋 - 北京师范大学 - 数学科学学院

个人简介

姓名：苏喜锋职称：副教授所在部门（教研室）：方程教研室研究方向：微分方程、动力系统、数学物理研究兴趣：哈密顿系统（包括KAM理论、逆KAM理论、Aubry-Mather理论、Nekhoroshev估计、Arnold扩散）；变分法与非线性分析；Hopf分叉与中心流形理论；固态物理中的准晶体模型；非线性非局部椭圆方程和哈密顿雅可比方程；遍历优化、最优输运问题和平均场博弈理论。教学工作：《数学分析I、II、III》、《常微分方程》、《现代分析选讲》、《动力系统引论》、《哈密顿系统》、《大学数学AI、AII、AIII》（《微积分I、II》、《线性代数》）等。科研项目： 1. 国家自然科学基金面上项目（2024.01-2027.12）（No. 12371186) 2. 国家自然科学基金面上项目（2020.01-2023.12）（No. 11971060) 3. 国家自然科学基金青年基金（2014.01-2016.12）（No. 11301513） 4. 教师发展基金（2014.09-2015.03，2015.09-2016.03） 5. 中国博士后科学基金（2012.03-2013.8）

研究领域

微分方程、动力系统、数学物理哈密顿系统（包括KAM理论、逆KAM理论、Aubry-Mather理论、Nekhoroshev估计、Arnold扩散）；变分法与非线性分析；Hopf分叉与中心流形理论；固态物理中的准晶体模型；非线性非局部椭圆方程和哈密顿雅可比方程；遍历优化、最优输运问题和平均场博弈理论。

近期论文

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1. Xifeng Su and Rafael de la Llave. On a remarkable example of F. Almgren and H. Federer in the global theory of minimizing geodesics. Discrete and Continuous Dynamical Systems - Series A, 2019, Vol 39, no. 12, 7057-7080. 2. Xifeng Su and Rafael de la Llave. A continuous family of equilibria in ferromagnetic media are ground states. Comm. Math. Phys., 2017, Vol 354, no. 2, 459-475. 3. Rafael de la Llave and Xifeng Su and Lei Zhang. Resonant Equilibrium Configurations in Quasi-Periodic Media: KAM Theory, SIAM J. Math. Anal., 2017, Vol 49, no. 1, 597–625. 4. Xifeng Su and Rafael de la Llave. KAM theory for quasi-periodic equilibria in one-dimensional quasi-periodic media, SIAM Journal on Mathematical Analysis, 2012, Vol. 44, Issue 6, 3901-3927. 5. Xifeng Su and Philippe Thieullen and Wenzhe Yu. Lipschitz sub-actions for locally maximally hyperbolic sets of a C^1 map. Discrete and Continuous Dynamical Systems-Series A, 2024, Vol 44, no. 3, 657-677. 6. Marie-Claude and Xifeng Su. On the $C^1$ and $C^2$-convergence to weak K.A.M. solutions. Comm. Math. Phys. 392 (2022), no. 3, 825–861. 7. Xifeng Su and Philippe Thieullen. Gottschalk-Hedlund theorem revisited. Mathematical Research Letter, 2021, Vol 28, no.1, 285-300. 8. Xifeng Su and Philippe Thieullen. Convergence of discrete Aubry-Mather model in the continuous limit. Nonlinearity, 2018, Vol 31, no. 5. 9. Xifeng Su and Lin Wang and Jun Yan. Weak KAM theory for HAMILTON-JACOBI equations depending on unknown functions, Discrete and Continuous Dynamical Systems - Series A, 2016, Vol 36, no. 11, 6487–6522. 10. Xifeng Su, Enrico Valdinoci, Yuanhong Wei, Jiwen Zhang. Regularity results for solutions of mixed local and nonlocal elliptic equations. Math. Z. 302, 1855–1878 (2022). 11. Yuanhong Wei and Xifeng Su. Multiplicity of solutions for non-local elliptic equations driven by fractional Laplacian, Calculus of Variations and Partial Differential Equations, 2015, Vol. 52, Issue 1-2, pp 95-124. 12. Yuanhong Wei and Xifeng Su. On a class of non-local elliptic equations with asymptotically linear term. Discrete and Continuous Dynamical Systems - Series A, 2018, Vol 38, no. 12, 6287-6304.