activity
20242026
most citedSome remarks about an effective description of high-frequency wave-packet propagation

1 citations · 1 across the 6 of their papers we have counts for

collaborators
Showing 2024Show all

2 papers · 1 filter

math.DS2024

NLS approximation for a scalar FPUT system on a 2D square lattice with a cubic nonlinearity

Ioannis Giannoulis, Bernd Schmidt, Guido Schneider

We consider a scalar Fermi-Pasta-Ulam-Tsingou (FPUT) system on a square 2D lattice with a cubic nonlinearity. For such systems the NLS equation can be derived to describe the evolu…

math.AP2024

Global existence for long wave Hopf unstable spatially extended systems with a conservation law

Nicole Gauss, Anna Logioti, Guido Schneider +1

We are interested in reaction-diffusion systems, with a conservation law, exhibiting a Hopf bifurcation at the spatial wave number . With the help of a multiple scaling pert…