-variétés topologiques et -microfibrés
Galois Action on Algebraic Matrix Groups, Chern Classes, and the Euler Class.
Gaps in Chern Classes of Rank 2 Stable Reflexive Sheaves.
Gauge independent formulation of dynamics of charged extended objects
General position properties in fiberwise geometric topology [Book]
Generalized group algebras and their bundles.
Generalized Higher Order Cohomology Operations Induced by the Diagonal Mapping.
Generalized universal covering spaces and the shape group
If a paracompact Hausdorff space X admits a (classical) universal covering space, then the natural homomorphism φ: π₁(X) → π̌₁(X) from the fundamental group to its first shape homotopy group is an isomorphism. We present a partial converse to this result: a path-connected topological space X admits a generalized universal covering space if φ: π₁(X) → π̌₁(X) is injective. This generalized notion of universal covering p: X̃ → X enjoys most of the usual properties, with the possible exception of evenly...
Generating varieties for the triple loop space of classical Lie groups
For G = SU(n), Sp(n) or Spin(n), let be the centralizer of a certain SU(2) in G. We have a natural map . For a generator α of , we describe J⁎(α). In particular, it is proved that is injective.
Geodesics on the tangent sphere bundles over space forms.
Geometric topology of stratified spaces.
Geometrically Defined Transfers, Comparisons.
G-functors, G-posets and homotopy decompositions of G-spaces
We describe a unifying approach to a variety of homotopy decompositions of classifying spaces, mainly of finite groups. For a group G acting on a poset W and an isotropy presheaf d:W → (G) we construct a natural G-map which is a (non-equivariant) homotopy equivalence, hence is a homotopy equivalence. Different choices of G-posets and isotropy presheaves on them lead to homotopy decompositions of classifying spaces. We analyze higher limits over the categories associated to isotropy presheaves...
Global structure of the mod two symmetric algebra, over the Steenrod Algebra.
Globalizing fibrations by schedules
Gröbner Bases for Complex Grassmann Manifolds
Group Actions and Generalized Preriodicity.
Group Actions with Inequivalent Representations at Fixed Points.
Groupoid Operations and Fibre-Homotopy Equivalence. I.
Groupoïde fondamental et d'holonomie de certains feuilletages réguliers
Let M be a manifold with a regular foliation F. We recall the construction of the fundamental groupoid and the homotopy groupoid associated to F. We describe some interesting particular cases and give some glueing techniques. We characterize the cases where these groupoids are Hausdorff spaces.We study in particular both groupoids associated to foliations with Reeb components.