12 papers
Calibrated Pressure-Observable Born and Hessian Actions for Quantum-Assisted Waveform Inversion
Guanyu Li, Jiwei Jia, Yu Wang +1
The paper proposes a quantum‑assisted framework for acoustic full‑waveform inversion that builds a pressure‑consistent operator and readout scheme to compute Born, adjoint, and Gau…
Invariant Guided PINN for Fluid Flow Computation
Zheng Lu, Jiwei Jia, Bora Aniruddha +2
The paper introduces an invariant‑guided physics‑informed neural network (IG‑PINN) that trains on spatial subdomains or temporal slabs and then applies a global correction to impro…
ResiPhy-MDNF: A Residual-Based Physics-Aware Multilevel Discrete Neural Field Framework for PDE-Constrained Inverse Problems
Zheng Lu, Jiwei Jia, Young Ju Lee
Inverse problems governed by partial differential equations are difficult when observations are sparse and the unknown coefficient field contains both large- and small-scale struct…
McMg: A Learned Phase-Space Multi-channel Multigrid Preconditioner for Helmholtz Equation
Jiwei Jia, Xinliang Liu, Juntao Wang +1
Solving heterogeneous Helmholtz equations at high wavenumbers remains challenging because the discretized operator is indefinite, pollution degrades phase accuracy, and scalar coar…
Beyond binary scission: a generalized three-species cascade breakage model for wormlike micellar solutions
Rongxin Lu, Jiwei Jia, Young Ju Lee
Wormlike micellar fluids exhibit complex rheological behavior driven by the continuous breakage and recombination of self-assembled micellar networks. Existing two-species models p…
Second-Order Area/Volume-Preserving PFEMs for Surface Diffusion via Simpson--Boole Geometric Identities
Zhiqing Pan, Jiwei Jia, Lian Zhang
We propose second-order-in-time parametric finite element methods for surface diffusion of closed curves in two dimensions and closed surfaces in three dimensions. The construction…