Specializing in Control Theory and Inverse Problems for Stochastic Partial Differential Equations (SPDEs). My work bridges pure mathematical theory with complex system analysis.
In the realm of Control Theory, I focus on establishing null and exact controllability for various stochastic evolutionary systems using global Carleman estimates and duality arguments. Furthermore, to bridge the gap between continuous theory and numerical implementation, I investigate the uniform controllability of semi-discrete approximations, rigorously analyzing how discretization parameters influence control behavior.
Regarding Inverse Problems, I work on determining and reconstructing unknown components in the system (source terms, coefficients, or initial/boundary values) using partial observation data. Addressing the ill-posed nature of these problems, I employ Carleman estimates to derive conditional stability results and develop globally convergent iterative regularization methods.
My overarching vision is to focus on control and inverse problems for stochastic partial differential equations, regarding both theory and numerics.
work Experience
06.2023 - present
Assistant Professor
School of Mathematics, Southwest Jiaotong University (西南交通大学)
09.2025 - 02.2026
Visiting Scholar
Chair for Dynamics, Control, Machine Learning and Numerics, FAU Erlangen-Nürnberg
Host Professor: Prof. Dr. DhC. Enrique Zuazua
history_edu Education
09.2013 - 06.2017
B.Sc. in Mathematics
Sichuan University
Publications
Articles
An Inverse Source Problem for Semilinear Stochastic Hyperbolic Equations
Q. Lü, Y. Wang | Inverse Problems, 41(11) (2025), 115014
The ϕ-null controllability for semi-discrete stochastic semilinear parabolic equations
Y. Wang, Q. Zhao | ESAIM Control Optim. Calc. Var., 31 (2025), Paper No. 98
Exact controllability for a refined stochastic plate equation
Q. Lü, Y. Wang | Chinese Ann. Math. Ser. B, 46(3) (2025), 415–442
Stability and regularization for ill-posed Cauchy problem of a stochastic parabolic differential equation
F. Dou, P. Lü, Y. Wang | Inverse Problems, 40(11) (2024), 115005
Null controllability for stochastic coupled systems of fourth order parabolic equations
Y. Wang | J. Math. Anal. Appl., 538 (2024), 128426
Null controllability for fourth order stochastic parabolic equations
Q. Lü, Y. Wang | SIAM J. Control Optim., 60 (2022), 1563–1590
Preprints
Exact controllability for stochastic first-order multi-dimensional hyperbolic systems
Z. Li, Q. Lü, Y. Wang, H. Yang — Submitted
Null controllability for stochastic fourth order semi-discrete parabolic equations
Y. Wang, Q. Zhao — Submitted
Inverse problems for stochastic partial differential equations
Q. Lü, Y. Wang — Submitted
Invited Talks
Inverse problems for stochastic partial differential equations
present_to_all [Slides]- arrow_right EDP and Applied Mathematics Seminar, Dec. 10, 2025
- arrow_right Workshop on Recent Trends in Applied Mathematics and Machine Learning, Jul. 25, 2025
Controllability of stochastic fourth order partial differential equations
present_to_all [Slides]- arrow_right The 15th Academic Conference on Mathematical Control Theory and Applications, Nov. 9, 2024
- arrow_right 中国工业与应用数学学会系统与控制数学 2024 年学术研讨会, Aug. 18, 2024
- arrow_right 中国仿真学会不确定性系统分析与仿真大会, Aug. 3, 2024
- arrow_right 2024年中西南六省(市)应用数学学术会议, Jun. 3, 2024
- arrow_right The 14th Academic Conference on Mathematical Control Theory and Applications, Aug. 10, 2023
Research Grants
Controllability of stochastic plate equations, 2026-2027, RMB 100K.
Sichuan Science and Technology Program (No. 2026NSFSC0777)
四川省自然科学基金项目(青年科学基金B类) (No. 2026NSFSC0777), 随机板方程的能控性, 2026-2027, 10万元
Controllability of fourth order semilinear stochastic partial differential equations, 2025-2027, RMB 300K.
National Natural Science Foundation of China (No. 12401589)
国家自然科学基金青年科学基金项目 (No. 12401589), 四阶半线性随机偏微分方程的能控性, 2025-2027, 30万元
Controllability of a fourth-order coupled stochastic parabolic system, 2024-2025, RMB 100K.
Fundamental Research Funds for the Central Universities (No. 2682024CX013)
中央高校基本科研业务费 (No. 2682024CX013), 耦合四阶随机抛物型系统的能控性, 2024-2025, 10万元
Academic Service
Reviewer
Mathematical Reviews / MathSciNet (American Mathematical Society) — reviewer
Journal Refereeing
Teaching Experience
Courses Instructed
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auto_stories
Introduction to Major (专业导论)
2024