On the maximum number of period annuli for second order conservative equations
We consider a second order scalar conservative differential equation whose potential function is a Morse function with a finite number of critical points and is unbounded at infinity. We give an upper bound for the number of nonglobal nontrivial period annuli of the equation and prove that the upper...
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Vilnius Gediminas Technical University
2021
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oai:doaj.org-article:fc54a7ad90ec49ea83dc9abd3dc3d5822021-11-29T09:14:00ZOn the maximum number of period annuli for second order conservative equations1392-62921648-351010.3846/mma.2021.13979https://doaj.org/article/fc54a7ad90ec49ea83dc9abd3dc3d5822021-11-01T00:00:00Zhttps://journals.vgtu.lt/index.php/MMA/article/view/13979https://doaj.org/toc/1392-6292https://doaj.org/toc/1648-3510We consider a second order scalar conservative differential equation whose potential function is a Morse function with a finite number of critical points and is unbounded at infinity. We give an upper bound for the number of nonglobal nontrivial period annuli of the equation and prove that the upper bound obtained is sharp. We use tree theory in our considerations.Armands GritsansInara YermachenkoVilnius Gediminas Technical Universityarticleconservative equationmorse functionperiod annulusbinary treeMathematicsQA1-939ENMathematical Modelling and Analysis, Vol 26, Iss 4, Pp 612-630 (2021) |
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conservative equation morse function period annulus binary tree Mathematics QA1-939 |
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conservative equation morse function period annulus binary tree Mathematics QA1-939 Armands Gritsans Inara Yermachenko On the maximum number of period annuli for second order conservative equations |
description |
We consider a second order scalar conservative differential equation whose potential function is a Morse function with a finite number of critical points and is unbounded at infinity. We give an upper bound for the number of nonglobal nontrivial period annuli of the equation and prove that the upper bound obtained is sharp. We use tree theory in our considerations. |
format |
article |
author |
Armands Gritsans Inara Yermachenko |
author_facet |
Armands Gritsans Inara Yermachenko |
author_sort |
Armands Gritsans |
title |
On the maximum number of period annuli for second order conservative equations |
title_short |
On the maximum number of period annuli for second order conservative equations |
title_full |
On the maximum number of period annuli for second order conservative equations |
title_fullStr |
On the maximum number of period annuli for second order conservative equations |
title_full_unstemmed |
On the maximum number of period annuli for second order conservative equations |
title_sort |
on the maximum number of period annuli for second order conservative equations |
publisher |
Vilnius Gediminas Technical University |
publishDate |
2021 |
url |
https://doaj.org/article/fc54a7ad90ec49ea83dc9abd3dc3d582 |
work_keys_str_mv |
AT armandsgritsans onthemaximumnumberofperiodannuliforsecondorderconservativeequations AT inarayermachenko onthemaximumnumberofperiodannuliforsecondorderconservativeequations |
_version_ |
1718407442468962304 |