In this article we give a summary of an improvement our earier result [FO2] on Arnold's conjecture about the number of periodic orbits of periodic Hamiltonian system. In [FO2], we gave an estimate in terms of Betti numbers. In this article, we include torsion coefficients. We also define an "integer part" of the Gromov-Witten invariant.
Digital Object Identifier: 10.2969/aspm/03110075