Quasi-regularity property for unfoldings of hyperbolic polycycles
Complex analytic methods in dynamical systems - IMPA, January 1992, Astérisque, no. 222 (1994), pp. 303-326.
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     author = {El Morsalani, M. and Mourtada, A. and Roussarie, R.},
     title = {Quasi-regularity property for unfoldings of hyperbolic polycycles},
     booktitle = {Complex analytic methods in dynamical systems - IMPA, January 1992},
     editor = {Camacho C. and Lins Neto A. and Moussu R. and Sad P.},
     series = {Ast\'erisque},
     pages = {303--326},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {222},
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     language = {en},
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El Morsalani, M.; Mourtada, A.; Roussarie, R. Quasi-regularity property for unfoldings of hyperbolic polycycles, dans Complex analytic methods in dynamical systems - IMPA, January 1992, Astérisque, no. 222 (1994), pp. 303-326. http://www.numdam.org/item/AST_1994__222__303_0/

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[D] H. Dulac, Sur les cycles limites. Bull. Soc. Math. France, 51, (1923), 45-188.

[DRR] F. Dumortier, R. Roussarie, C. Rousseau, Hilbert's 16th problem for quadratic vector fields. Preprint (1991).

[E1] J. Ecalle, Finitude des cycles limites et accélero-sommation de l'application de retour, Lecture Notes in Mathematics. Proceeding, Luminy, 1989, Bifurcations of Planar Vector Fields. Eds. J. P. Françoise and R. Roussarie. n° 1455, pp 74-157.

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