武汉大学自然科学学报(英文版)2024,Vol.29Issue(2) :106-116.DOI:10.1051/wujns/2024292106

Canonical Transformations and Poisson Theory for Dynamics with Non-Standard Lagrangians

ZHU Lin ZHANG Yi
武汉大学自然科学学报(英文版)2024,Vol.29Issue(2) :106-116.DOI:10.1051/wujns/2024292106

Canonical Transformations and Poisson Theory for Dynamics with Non-Standard Lagrangians

ZHU Lin 1ZHANG Yi2
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作者信息

  • 1. School of Mathematical Sciences,Suzhou University of Science and Technology,Suzhou 215009,Jiangsu,China
  • 2. School of Civil Engineering,Suzhou University of Science and Technology,Suzhou 215011,Jiangsu,China
  • 折叠

Abstract

The canonical transformation and Poisson theory of dynamical systems with exponential,power-law,and logarithmic non-standard Lagrangians are studied,respectively.The criterion equations of canonical transformation are established,and four basic forms of canonical transformations are given.The dynamic equations with non-standard Lagrangians admit Lie algebraic structure.From this,we es-tablish the Poisson theory,which makes it possible to find new conservation laws through known conserved quantities.Some examples are put forward to demonstrate the use of the theory and verify its effectiveness.

Key words

non-standard Lagrangians/dynamical equations/canonical transformation/Poisson theory

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基金项目

National Natural Science Foundation of China(12272248)

National Natural Science Foundation of China(11972241)

出版年

2024
武汉大学自然科学学报(英文版)
武汉大学

武汉大学自然科学学报(英文版)

CSTPCD
影响因子:0.066
ISSN:1007-1202
参考文献量41
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