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math-ph2025
Improved geometric and recollision estimates for the invariance principle of the random Lorentz gas
Karsten Matthies, Raphael Winter
By improving geometric recollision estimates for a random Lorentz gas, we extend the timescale of the invariance principle for a Lorentz gas with particle size obtained…
math.AP2025★ 1 cited
Fronts in dissipative Fermi-Pasta-Ulam-Tsingou chains
Michael Herrmann, Guillaume James, Karsten Matthies
In a dissipative Fermi-Pasta-Ulam-Tsingou chain particles interact with their nearest neighbors through anharmonic potentials and linear dissipative forces. We prove the existence…