Introduction

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

09.2017 - 06.2023

Ph.D. in Mathematics

Sichuan University

Supervisor: Professor Qi Lü (吕琦)

09.2013 - 06.2017

B.Sc. in Mathematics

Sichuan University

Scholarship

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

payments

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

payments

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

payments

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

verified

Reviewer

Mathematical Reviews / MathSciNet (American Mathematical Society) — reviewer

Journal Refereeing

Applied Mathematics & Optimization Chinese Annals of Mathematics, Series B ESAIM: Control, Optimisation and Calculus of Variations Inverse Problems Journal of Differential Equations Journal of Mathematical Analysis and Applications Journal of Optimization Theory and Applications Journal of Systems Science and Complexity Mathematical Control and Related Fields Neural Networks Science China Mathematics SIAM Journal on Control and Optimization

Teaching Experience

Courses Instructed