A Lagrangian form of tangent forms

作者：Popescu Paul^*

来源：Journal of Geometry and Physics, 2014, 77: 113-130.

DOI：10.1016/j.geomphys.2013.12.008

• Tangent form
• Lagrangian
• Euler-Lagrange equation
• Hamiltonian vector field
• Semi-spray

The aim of the paper is to study some dynamic aspects coming from a tangent form, i.e. a time dependent differential form on a tangent bundle. The action on curves of a tangent form is natural associated with that of a second order Lagrangian linear in accelerations, while the converse association is not unique. An equivalence relation of the tangent form, compatible with gauge equivalent Lagrangians, is considered. We express the Euler-Lagrange equation of the Lagrangian as a second order Lagrange derivative of a tangent form, considering controlled and higher order tangent forms. Hamiltonian forms of the dynamics generated are given, extending some quantization formulas given by Lukierski, Stichel and Zakrzewski. Using semi-sprays, local solutions of the E-L equations are given in some special particular cases.

• 出版日期2014-3