On a class of damped vibration problems
โ
Xian Li; Xian Wu; Ke Wu
๐
Article
๐
2010
๐
Elsevier Science
๐
English
โ 485 KB
The main purpose of this paper is to study the following damped vibration problems By establishing a proper variational set, one existence result and two multiplicity results of non-trivial periodic solutions of (1) are obtained.