Developments in Numerical Methods for Differential Equations and Conservation Laws

The field of numerical methods for differential equations and conservation laws is moving towards the development of more efficient, accurate, and robust schemes. Researchers are focusing on creating methods that preserve the underlying physical properties of the systems being modeled, such as energy conservation, entropy inequality, and invariant regions. There is also a growing interest in developing schemes that can handle complex problems, including non-local conservation laws and mean field games with non-differentiable Hamiltonians. Noteworthy papers in this regard include the introduction of a novel spectral analysis tool for generalized locally Toeplitz sequences, a structure-preserving scheme for the Godunov-Peshkov-Romenski model of continuum mechanics, and an Active Flux method for the Euler equations based on the exact acoustic evolution operator. Additionally, new high-order finite volume schemes are being developed for multispecies kinematic flow models, and numerical methods are being proposed for Lagrangian particle classification and Lagrangian flux calculation.

Sources

Introduction to the theory of generalized locally Toeplitz sequences and its applications

Rates of convergence of finite element approximations of second-order mean field games with nondifferentiable Hamiltonians

A structure-preserving and thermodynamically compatible cell-centered Lagrangian finite volume scheme for continuum mechanics

An Active Flux method for the Euler equations based on the exact acoustic evolution operator

Invariant-region-preserving WENO schemes for one-dimensional multispecies kinematic flow models

Lagrangian Particle Classification and Lagrangian Flux Identities for a Moving Hypersurface

A MUSCL-Hancock scheme for non-local conservation laws

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