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math.NA2026
High-order positivity-preserving well-balanced schemes: combining flux globalization with modified Patankar deferred correction methods
Philipp Öffner, Michael Redle, Davide Torlo
Positivity-preserving schemes for hyperbolic balance laws are typically built from the Zhang-Shu limiter and strong-stability-preserving Runge-Kutta (SSP-RK) time stepping, at the…
astro-ph.SR2026
The Interplay of Magnetic Fields, Turbulence and Vorticity in Core-Collapse Supernovae
David Calvert, Michael Redle, Bibek Gautam +4
The convective turbulent motion of the fluid below the shock in a core-collapse supernova stretches and amplifies the magnetic field of the progenitor star. The energy contained in…