A Bound on the Order of Jumping Lines.
A character on the quasi-symmetric functions coming from multiple zeta values.
A characterziation of IPn by vector bundles.
A description of Chern classes of semistable sheaves on a quadric surface.
A Generalization of Milnor's Inequality Concerning Affine Foliations and Affine Manifolds
A Localization Theorem for Functional S1-Spaces.
A necessary condition for embedding a complex in
A note on characteristic classes
This paper studies the relationship between the sections and the Chern or Pontrjagin classes of a vector bundle by the theory of connection. Our results are natural generalizations of the Gauss-Bonnet Theorem.
A note on the cohomology ring of the oriented Grassmann manifolds
We use known results on the characteristic rank of the canonical –plane bundle over the oriented Grassmann manifold to compute the generators of the –cohomology groups for . Drawing from the similarities of these examples with the general description of the cohomology rings of we conjecture some predictions.
A note on the height of the third Stiefel--Whitney class of the canonical vector bundles over some Grassmann manifolds
We compute the height of the third Stiefel--Whitney characteristic class of the canonical bundles over some infinite classes of Grassmann manifolds of five dimensional vector subspaces of real vector spaces.
À propos de l'existence de fibrés stables sur les surfaces.
A remark on the Bott class
A remark on the geography of surfaces with birational canonical morphisms.
A secondary Chern-Euler class.
A Sharp Bound for the Number of Points where a Rank 3 Stable Reflexive Sheaf is not Free.
A singular Riemann-Roch for Hirzebruch characteristics
A splitting theorem for the Kupka component of a foliation of . Addendum to a paper by O. Calvo-Andrade and N. Soares
Here we show that a Kupka component of a codimension 1 singular foliation of with not a square is a complete intersection. The result implies the existence of a meromorphic first integral of .
A splitting theorem for the Kupka component of a foliation of . Addendum to an addendum to a paper by Calvo-Andrade and Soares
Here we show that a Kupka component of a codimension 1 singular foliation of is a complete intersection. The result implies the existence of a meromorphic first integral of . The result was previously known if was assumed to be not a square.
A universal space for normal bundles of n-manifolds.
A Vanishing Theorem for Euler Characteristics.