Bak, Sergiy Mykolaiovych2020-11-112020-11-112020Bak S. About travelling waves in Fermi–Pasta–Ulam system on 2D–lattice. Abstracts of the XI International V. Skorobohatko Mathematical Conference (Lviv, 26.10.2020-30.10.2020). Lviv, 2020. P. 10.https://library.vspu.net/items/0ef72944-61a2-4a3c-b9d1-ea51789cd361We study the Fermi-Pasta-Ulam system that describes the dynamics of an in nite system of nonlinearly coupled particles on two dimensional lattice. We obtain, by means of the critical points method, a results on the existence of nonconstant periodic and solitary travelling waves.en-USFermi-Pasta-Ulam system, traveling wavesArticle