期刊名称:International Journal of Mathematics and Mathematical Sciences
印刷版ISSN:0161-1712
电子版ISSN:1687-0425
出版年度:2004
卷号:2004
DOI:10.1155/S0161171204405456
出版社:Hindawi Publishing Corporation
摘要:The Kuramoto-Sivashinsky (KS) equation
is known as a popular prototype to represent a system in which
the transport of energy through nonlinear mode coupling produces a
balance between long wavelength instability and short
wavelength dissipation. Existing numerical results indicate that
the KS equation admits three classes (namely,
regular shock, oscillatory shock, and solitary wave) of
nonperiodic traveling wave solutions and families of multiple
solutions in each class. However, the details of multiple
solutions are still unclear because of numerical accuracy. In
this work, a rational spectral approach is used to compute these
multiple traveling wave solutions. Owing to the high accuracy of
the employed method, the new families of regular shock waves are
found and the fine structure of each family is recognized.