collaborators

7 papers

math.NA2026

High-order fully discrete multi-entropy-stable and bound-preserving schemes for relativistic Euler equations

Linfeng Xu, Kailiang Wu

A discrete entropy inequality is the principal nonlinear stability estimate available for systems of conservation laws, and evaluating it presupposes a physically admissible state.…

math.NA2026

GQL-Based Physical-Constraint-Preserving High-Order Finite Difference Schemes for Special Relativistic Hydrodynamics in Arbitrary Dimensions

Linfeng Xu, Shengrong Ding, Kailiang Wu

High-order accurate simulations of special relativistic hydrodynamics (RHD) are prone to numerical breakdown if intrinsic physical constraints (positive rest-mass density/pressure…

math.NA2026

EPO: A Unified Framework for Entropy Stability, Positivity, and Oscillation Suppression

Kailiang Wu

High-order finite volume and discontinuous Galerkin methods are often stabilized by separate nonlinear devices for admissibility, entropy control, and oscillation suppression. This…

math.NA2025

High Order Numerical Methods Preserving Invariant Domain for Hyperbolic and Related Systems

Kailiang Wu, Xiangxiong Zhang, Chi-Wang Shu

Admissible states in hyperbolic systems and related equations often form a convex invariant domain. Numerical violations of this domain can lead to loss of hyperbolicity, resulting…

math.NA2025

Bound-Preserving WENO Schemes for Temple-class systems

Wei Chen, Shumo Cui, Kailiang Wu +2

This paper explores numerical schemes for Temple-class systems, which are integral to various applications including one-dimensional two-phase flow, elasticity, traffic flow, and s…

math.NA2025

Oscillation-eliminating central DG schemes for hyperbolic conservation laws

Manting Peng, Kailiang Wu, Caiyou Yuan

This paper proposes and analyzes a class of essentially non-oscillatory central discontinuous Galerkin (CDG) methods for general hyperbolic conservation laws. First, we introduce a…