Morse Index Theorem of Lagrangian Systems and Stability of Brake Orbit
@article{Hu2018MorseIT, title={Morse Index Theorem of Lagrangian Systems and Stability of Brake Orbit}, author={Xijun Hu and Li Wu and Ran Yang}, journal={Journal of Dynamics and Differential Equations}, year={2018}, volume={32}, pages={61-84} }
In this paper, we prove Morse index theorem of Lagrangian systems with self-adjoint boundary conditions. Based on it, we give some nontrivial estimates on the difference of Morse indices. As an application, we get a new criterion for the stability problem of brake periodic orbit.
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