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arXiv · 2606.15103

Estimate of Periodic Orbits of Degenerate Hamiltonians

Hao Jiao
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Abstract

The Arnold conjecture is a classic and important conjecture in the field of symplectic geometry, which describes the estimation of the number of periodic solutions of the Hamiltonian quantity on any symplectic manifold, which is equivalent to the symplectic version of Morse's theory. In the past development process, Andreas Floer was the first to propose Floer's theory, and solved the situation of non-degenerate Hamiltonian quantities under monotonic symplectic manifolds, and then Kenji Fukaya and Kaoru Ono solved the estimation of non-degenerate Hamiltonian quantities under rational coefficients in 1999. In 2023, Bai-Xu solved the estimation under the integer coefficient, and the non-degenerate version of Arnold's conjecture was completely resolved, but the degenerate version of Arnold conjecture did not progress so smoothly. In this paper, we have compiled some work on the degenerate version of Arnold conjecture, and based on these works, a new proof idea is proposed. By combining the action of quantum cohomology on Floer cohomology, combined with a universal energy estimation of the trajectories of $bar{partial}_H$-holomorphic in the paper, we can prove the degenerate Arnold conjecture in some special cases under the framework of Floer's theory.

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Hao Jiao. 2026-06-13. Estimate of Periodic Orbits of Degenerate Hamiltonians. https://arxiv.org/abs/2606.15103

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