@Article{ATA-36-295,
author = {Xu , Junxiang and Li , Qi},
title = {Lyapunov Center Theorem of  Infinite Dimensional Hamiltonian Systems},
journal = {Analysis in Theory and Applications},
year = {2020},
volume = {36},
number = {3},
pages = {295--325},
abstract = {<p style="text-align: justify;">In this paper we reformulate a Lyapunov center theorem of infinite dimensional Hamiltonian systems arising from PDEs. The proof is based on a modified KAM iteration for periodic case.</p>},
issn = {1573-8175},
doi = {https://doi.org/10.4208/ata.OA-SU9},
url = {http://global-sci.org/intro/article_detail/ata/18288.html}
}