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math.NA2023
A short note on the stability of a class of parallel Runge-Kutta methods
Friedemann Kemm
With this short note, we close a gap in the linear stability theory of block predictor-corrector Runge-Kutta schemes originally proposed for the parallel solution of ODEs.
math.NA2023
New options for explicit all Mach number schemes by suitable choice of time integration methods
Friedemann Kemm
Many low-Mach or all-Mach number codes are based on space discretizations which in combination with the first order explicit Euler method as time integration would lead to an unsta…
cs.GT2023
Why Majority Judgement is not yet the solution for political elections, but can help finding it
Friedemann Kemm
Like many other voting systems, Majority Judgement suffers from the weaknesses of the underlying mathematical model: Elections as problem of choice or ranking. We show how the mode…