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20122026
most citedNon-uniqueness for the Euler equations: the effect of the boundary

15 citations · 18 across the 15 of their papers we have counts for

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math.AP2026

Energy rigidity and weak-strong uniqueness for the 2D anisotropic Navier-Stokes equations

Josef Demmel, Emil Wiedemann

In two dimensions, we show that dissipation in one spatial direction is sufficient to enforce the energy equality for every weak solution at the natural energy level. In particular…

math.AP2026

Inviscid Incompressible Limit for Degenerate Compressible Navier-Stokes Equations on Expanding Domains

Tong Tang, Emil Wiedemann, Lu Zhu

We simultaneously investigate the inviscid and Low Mach number limits on expanding domains for the degenerate compressible Navier-Stokes equations, whose viscosity depends on…

math.AP2026

On the equivalence of generalized solution concepts for systems of hyperbolic conservations laws in fluid dynamics

Thomas Eiter, Robert Lasarzik, Emil Wiedemann

We investigate the relation between several generalized solution concepts for nonlinear PDE systems from fluid dynamics. More precisely, we study measure-valued solutions, dissipat…

math.AP2026

Weak-Strong Uniqueness for a Rigid Body Immersed in an Inviscid Compressible Fluid

Qianfeng Li, Emil Wiedemann

We consider the coupled motion of a free rigid body immersed in an inviscid compressible isentropic fluid. By means of a vanishing viscosity limit, we obtain the local-in-time exis…

math.AP2026

The Nonlocal-to-Local Limit for the Inviscid Leray-α Equations

Jule Schindler, Emil Wiedemann

We consider the inviscid Leray- equations - an inviscid nonlocal regularisation of the Euler equations. In the first part, we prove the convergence of strong solutions of the Le…