中国物理B ›› 2009, Vol. 18 ›› Issue (1): 259-268.doi: 10.1088/1674-1056/18/1/042
田强1, 徐权2
Xu Quan(徐权)a)b)† and Tian Qiang(田强)b)
摘要: This paper discusses the two-dimensional discrete monatomic Fermi--Pasta--Ulam lattice, by using the method of multiple-scale and the quasi-discreteness approach. By taking into account the interaction between the atoms in the lattice and their nearest neighbours, it obtains some classes of two-dimensional local models as follows: two-dimensional bright and dark discrete soliton trains, two-dimensional bright and dark line discrete breathers, and two-dimensional bright and dark discrete breather.
中图分类号: (Lattice theory and statistics)