Equivariant Complex Vector Bundles over Spheres.
Exotic Characteristic Classes and Their Relation to Universal Surgery Classes.
Exotic S1 Actions on CP3 and Related Topics.
Extension of cross-sections and a generalized de Rham theorem.
Extensions of symplectic groupoids and quantization.
Feuilletages de variétés de dimension 3 qui sont des fibrés en cercles.
Fibrés uniformes de type (0, . . . , 0, - 1, . . ., -1) sur P2.
Fibrés vectoriels positifs sur une courbe elliptique
Flat circle bundles, pullbacks, and the circle made discrete.
Fourier-like kernels in geometric quantization [Book]
Fundamental Groups of Homogeneous Space Forms.
Generalized Higher Order Cohomology Operations Induced by the Diagonal Mapping.
Geodesics on the tangent sphere bundles over space forms.
Homotopy-equivariance.
Hopf mappings for complex quaternions.
La conjecture des immersions
Line Bundles and Harmonic Analysis on Compact Groups.
Line Bundles over Framed Manifolds.
Line bundles with
We prove that on a -complex the obstruction for a line bundle to be the fractional power of a suitable pullback of the Hopf bundle on a 2-dimensional sphere is the vanishing of the square of the first Chern class of . On the other hand we show that if one looks at integral powers then further secondary obstructions exist.
Minimal cell coverings of some sphere bundles