Higher order Poincare-Pontryagin functions and iterated path integrals

Lubomir Gavrilov

备注：

This is a revised version containing the following changes: reference [18] is added, some notations are changed, the proof of Theorem 1 is corrected, Theorem B1 and B2 are replaced now by Theorem B, some signs are corrected in the Appendix. The paper will appear in "Annales de la Faculte des Sciences de Toulouse", 2005

发表信息：

Annales de la Faculté des Sciences de Toulouse, vol.14 (2005), no. 4, 677-696.