Name: Jijiang Sun

Title: Professor, Doctoral Supervisor

Research Focus: Nonlinear Functional Analysis and Partial Differential Equations

Education Experience：

September 2011 - June 2014, PhD in Basic Mathematics, School of Mathematical Sciences, Nankai University, Tianjin, China, Supervisor: Professor Shiwang Ma

September 2008 - June 2011, Master's degree in Basic Mathematics, School of Mathematics and Statistics, Southwest University, Chongqing, China, Supervisor: Professor Chunlei Tang

September 2004 - July 2008, Bachelor's degree in Majoring in Mathematics and Applied Mathematics, School of Mathematics and Statistics, Southwest University, Chongqing, China

Work Experience:

December 2024 - Now, Professor at the Department of Mathematics, Nanchang University, Jiangxi, China

December 2017 - November 2024, Associate Professor at the Department of Mathematics, Nanchang University, Jiangxi, China

July 2014 - November 2017, Lecturer, Department of Mathematics, Nanchang University, Jiangxi, China

Part-time Academic and Social Work:

June 2019 - Now, Reviewer of《Math. Review》(American Mathematical Society)

July 2015 - Now, Reviewer of《zbMath》

January 2024 - Now, Young Editorial Board Member, Journal of Nanchang University (Natural Science)

Honors & Awards：

September 2023, Second Prize of Jiangxi Natural Science Award (First Rank)

July 2023, Outstanding Young Foundation of Jiangxi Province, China

Research Grants：

1、National Natural Science Foundation of China, Research on several variational problems for Kirchhoff type equations (12361024), January 2024-December 2027. (PI: J. Sun)

2. National Natural Science Foundation of China, Research on the variational problems for some lattice dynamical systems (11861046), January 2019-December 2022. (PI: J. Sun)

3. National Natural Science Foundation of China, Research on the solvability for FPU type systems and discrete nonlinear Schrödinger equations in one dimensional lattices (11501280), January 2016-December 2018. (PI: J. Sun)

Selected Academic Publications:

[1] Ziyi Wang, Jijiang Sun, Multiplicity of Solutions for Some Schrödinger-Born-Infeld System with Concave-Convex Nonlinearities, Mediterr. J. Math., 2026, 23:1.

[2] Xujing Ju, Jijiang Sun, Normalized solutions for Schrödinger- Bopp-Podolsky systems with general nonlinearities of mass subcritical, J. Math. Phys., 2025, 66, 101519.

[3] Yangyu Ni, Jijiang Sun, Concentration of normalized solutions for mass supercritical Kirchhoff type equations, J. Geom. Anal., 2025, 35:3.

[4] Jing, Hu, Jijiang Sun, Normalized ground states for Kirchhoff type equations with general nonlinearities, Adv. Differential Equ., 2024, 29(1-2), 111-152.

[5] Fenqi, Wang, Jijiang Sun, Jianhua Chen, Existence and asymptotic behavior of solutions for the Schrödinger-Born-Infeld system with steep potential well, Z. Angew. Math. Phys., 2023, 74:242.

[6] Xionghui Xu, Jijiang Sun, Ground state solutions for periodic discrete Schrödinger equations with local super-quadratic conditions, Z. Angew. Math. Phys., 2023, 74:5.

[7] Jijiang Sun, Lin Li, Matija Cencelj, Bostjan Gabrovsek, Infinitely many sign-changing solutions for Kirchhoff type problems in R^3, Nonlinear Anal., 2019, 186, 33-54.

[8] Jijiang Sun, Shiwang Ma, Periodic motions for FPU lattice systems with asymptotically quadratic potentials, J. Dyn. Differ. Equ., 2019, 31, 237-245.

[9] Jijiang Sun, Shiwang Ma, Ground state solutions for some Schrödinger– Poisson systems 0with periodic potentials, J. Differential Equations, 2016, 260, 2119-2149.

[10] Jijiang Sun, Shiwang Ma, Multiple solutions for discrete periodic nonlinear Schrödinger equations, J. Math. Phys., 2015, 56, 022110.

[11] Jijiang Sun, Shiwang Ma, Nontrivial periodic motions for resonant type asymptotically linear lattice dynamical systems, J. Math. Anal. Appl., 2014, 417, 622-634.

[12] Jijiang Sun, Shiwang Ma, Multiple periodic solutions for lattice dynamical systems with superquadratic potentials, J. Differential Equations, 2013, 255, 2534-2563.

[13] Jijiang Sun, Chunlei Tang, Resonance problems for Kirchhoff type equations, Discrete Contin. Dyn. Syst. Series A, 2013, 33, 2139-2154.

[14] Ji-Jiang Sun, Chun-Lei Tang, Existence and multiplicity of solutions for Kirchhoff type equations, Nonlinear Anal., 2011, 74, 1212-1222.

Email: jijiang@ncu.edu.cn; sunjijiang2005@163.com