activity
20052008
most citedRenormalized waves and discrete breathers in -FPU chains

66 citations · 74 across the 4 of their papers we have counts for

collaborators
Showing math-phShow all

3 papers · 1 filter

math-ph2008★ 8 cited

Canonical Hamiltonians for waves in inhomogeneous media

Boris Gershgorin, Yuri V. Lvov, Sergey Nazarenko

We obtain a canonical form of a quadratic Hamiltonian for linear waves in a weakly inhomogeneous medium. This is achieved by using the WKB representation of wave packets. The canon…

math-ph2007

Characterization of thermalized Fermi-Pasta-Ulam chains

Boris Gershgorin

The Fermi-Pasta-Ulam (FPU) chains of particles in \textit{thermal equilibrium} are studied from both wave-interaction and particle-interaction points of view. It is shown that, eve…

math-ph2005★ 66 cited

Renormalized waves and discrete breathers in -FPU chains

Boris Gershgorin, Yuri V. Lvov, David Cai

We demonstrate via numerical simulation that in the \textit{strongly} nonlinear limit, the -FPU system in thermal equilibrium behaves surprisingly like weakly nonlinear waves in…