Welcome to Guoqiang Zhang's Homepage

Guoqiang Zhang（张国强） Associate Professor Academy of Mathematics and Systems Science, Chinese Academy of Sciences Office:  Room 618, Siyuan Building Email:  gqzhang(AT)amss(DOT)ac(DOT)cn Address:  No.55 East Road, Zhongguancun, Haidian District, Beijing, P.R. China

Research Interests

• Mathematical Physics, Integrable Systems, and Quantum Integrable Models
• Many-Body and Multi-Component Nonlinear Wave Systems
• Nonlinear Wave Theory, Solitons, and Their Applications
• Inverse Scattering, Riemann–Hilbert Problems, and Long-Time Asymptotics

Education

2014.09–2019.07:  Ph.D. in Mathematics, Academy of Mathematics and Systems Science, Chinese Academy of Sciences

Employment

• 2025.05–Present:  Associate Professor, Academy of Mathematics and Systems Science, Chinese Academy of Sciences
• 2021.07–2025.05:  Assistant Professor, Academy of Mathematics and Systems Science, Chinese Academy of Sciences
• 2019.07–2021.07:  Post-Doctoral Fellow, Department of Mathematical Science, Tsinghua University

Honors and Awards

• 2021 Outstanding Ph.D. Thesis Award of Chinese Academy of Sciences（中国科学院优秀博士学位论文）
• 2019 President Award of Chinese Academy of Sciences（中国科学院院长奖）

Publications

1. Z. Lin, Z. Yan, G. Zhang, The Cauchy problem of any n-component Sasa-Satsuma system: vector-solitons resolution and long-time asymptotics, J. Differential Equations 476 (2026) 114480.
2. Z. Yan, B.A. Malomed, K.W. Chow, G. Zhang, W. Weng, Rogue waves: theory, methods, and applications—30 years after the Draupner wave, Chaos 35 (2025) 060402.
3. W. Weng, G. Zhang, Z. Yan, The focusing complex mKdV equation with nonzero background: Large N-order asymptotics of multi-rational solitons and related Painlevé-III hierarchy, J. Differential Equations 415 (2025) 303-364.
4. W. Weng, G. Zhang, B.A. Malomed, Z. Yan, Breather gas and shielding of the focusing nonlinear Schrödinger equation with nonzero backgrounds, Lett. Math. Phys. 115 (2025) 113.
5. W. Weng, G. Zhang, M. Zhang, Z. Zhou, Z. Yan, Semi-rational vector rogon–soliton solutions and asymptotic analysis for any n-component nonlinear Schrödinger equation with mixed boundary conditions, Phys. D 432 (2022) 133150.
6. G. Zhang, L. Ling, Z. Yan, Multi-component nonlinear Schrödinger equations with nonzero boundary conditions: higher-order vector Peregrine solitons and asymptotic estimates, J. Nonlinear Sci. 31 (2021) 81.
7. G. Zhang, Z. Yan, The derivative nonlinear Schrödinger equation with zero/nonzero boundary conditions: inverse scattering transforms and N-double-pole solutions, J. Nonlinear Sci. 30 (2020) 3089-3127.
8. G. Zhang, Z. Yan, Inverse scattering transforms and soliton solutions of nonlocal mKdV equations with non-zero boundary conditions, Phys. D 402 (2020) 132170.
9. G. Zhang, Z. Yan, The n-component nonlinear Schrödinger equations: dark–bright mixed N- and high-order solitons and breathers, and dynamics, Proc. R. Soc. A 474 (2018) 20170688.
10. G. Zhang, Z. Yan, X. Wen, Y. Chen, Interactions of localized wave structures and dynamics in the defocusing coupled nonlinear Schrödinger equations, Phys. Rev. E 95 (2017) 042201