Table of contents : Bifurcationss of codimension one singularities of tangent vector fields on Whitney's umbrella....Pages 1-11 Hereroclinic bifurcation in banach spaces....Pages 12-37 Quasi-homogeneous vector fields of degree 2 in ℝ 3 ....Pages 38-46 Hausdorff dimension of the singularities for invariant measures of expanding dynamical systems....Pages 47-58 Codimension on Anosov flows and suspensions....Pages 59-72 Foliations on surfaces having exceptional leaves....Pages 73-85 The hausdorff dimension of invariant probabilities of rational maps....Pages 86-117 Asymptotic behavior of solutions to abstract evolution equations....Pages 118-139 Developpement asymptotique de l'application retour d'un polycycle....Pages 140-149 On the continuity of Hausdorff dimension and limit capacity for horseshoes....Pages 150-160 A note on finite cyclicity property and Hilbert's 16th. Problem....Pages 161-168 Vector fields near the boundary of a 3-manifold....Pages 169-195 Limit capacity and hausdorff dimension of dynamically defined cantor sets....Pages 196-212 Intermittancy: Global aspects....Pages 213-239 Normal forms for deterministic and stochastic systems....Pages 240-250