Fields of 2-planes and two kinds of almost complex structures on compact 4-dimensional manifolds.
Fields of 2-Planes on Compact Simply-Connected Smooth 4-Manifolds.
Finitely Determined Singularities of Formal Vector Fields.
Fixed point free equivariant homotopy classes
Fixed point indices and manifolds with collars.
Foliations by planes and Lie group actions
Let N be a closed orientable n-manifold, n ≥ 3, and K a compact non-empty subset. We prove that the existence of a transversally orientable codimension one foliation on N∖K with leaves homeomorphic to , in the relative topology, implies that K must be connected. If in addition one imposes some restrictions on the homology of K, then N must be a homotopy sphere. Next we consider C² actions of a Lie group diffeomorphic to on N and obtain our main result: if K, the set of singular points of the...
Fundamental vector fields on associated fiber bundles
Fundamental vector fields on type fibres of jet prolongations of tensor bundles