I am a Research Fellow at University College London.
My works are in the analysis of PDE. I specialise in microlocal and semiclassical analysis, spectral and scattering theory, geometric control theory, and quantum dynamics.
I am not teaching in 2023–2024. Editorial requests for referee reports are welcomed.
My email address is ruoyu.protect..wang@.protect.ucl.ac.protect..uk. My office is Room 600, 25 Gordon St..
I regularly visit Imperial College for Applied PDE Seminar on Thursdays.
 Optimal backward uniqueness and polynomial stability of second order equations with unbounded damping (with Perry Kleinhenz). Preprint (2023).
[First half of the manuscript. Updates with new tools expected by 2024/02.]
 Control estimates for 0th order pseudodifferential operators (with Hans Christianson and Jian Wang). Int. Math. Res. Not. IMRN, published online (2023).
[Morse–Smale, limiting absorption principle, radial point estimates]
 Sharp polynomial decay for polynomially singular damping on the torus (with Perry Kleinhenz). Under review (2022).
[normally \(L^p\), semiclassical Morawetz vector field, backward uniqueness]
 Stabilisation of waves on product manifolds by boundary strips. Proc. Amer. Math. Soc., to appear (2022).
[transverse-to-product resolvent, transverse propagation estimate]
 Sharp polynomial decay for waves damped from the boundary in cylindrical waveguides. Math. Res. Lett., to appear (2022).
[Morawetz vector field, quasimodes via special functions]
 Exponential decay for damped Klein-Gordon equations on asymptotically cylindrical and conic manifolds. Ann. Inst. Fourier (Grenoble), to appear (2022).
[multiple-weight Carleman estimates, unique continuation and geometric control on noncompact manifolds]
I am not teaching in 2023–2024.