@Article{JNMA-1-301,
author = {Li , Chenguang and Li , Chengzhi},
title = {New Proofs of Monotonicity of Period Function for Cubic Elliptic Hamiltonian},
journal = {Journal of Nonlinear Modeling and Analysis},
year = {2021},
volume = {1},
number = {3},
pages = {301--305},
abstract = {<p style="text-align: justify;">In [1] S.-N. Chow and J. A. Sanders proved that the period function is monotone for elliptic Hamiltonian of degree 3. In this paper we significantly simplify their proof, and give a new way to prove this fact, which may be used in other problems.</p>},
issn = {2562-2862},
doi = {https://doi.org/10.12150/jnma.2019.301},
url = {http://global-sci.org/intro/article_detail/jnma/18844.html}
}