Jiajia Yu

collaborators

2 papers

math.NA2026

Structure-Preserving Reduced-Order Modeling via Low-Rank Transport Signatures

Jiajia Yu, Jingwei Hu, Fengyan Li +3

Parametrized PDEs with density-valued solutions are often difficult to approximate with classical linear reduced-order models, especially in transport-dominated regimes. We introdu…

math.OC2025

Zeroth-order Stochastic Cubic Newton Method Revisited

Yu Liu, Weibin Peng, Tianyu Wang +1

This paper studies stochastic minimization of a finite-sum loss $F (x) = \frac{1}{N} \sum_{I^¾ = 1}^{N} f (x; I^¾)$ . In many real-world scenarios, the Hessian matrix of…