On the Classification Problem for H-Spaces of Rank Two.
On the cohomology algebra of a fiber.
On the cohomology of mod p homotopy commutative H-spaces.
On the cohomology ring of the free loop space of a wedge of spheres.
On the connection between the topological genus of certain polyhedra and the algebraic genus of their Hilton-Hopt quadratic forms.
The Hilton-Hopf quadratic form is defined for spaces of the homotopy type of a CW complex with one cell each in dimensions 0 and 4n, K cells in dimension 2n and no other cells. If two such spaces are of the same topological genus, then their Hilton-Hopf quadratic forms are of the same weak algebraic genus. For large classes of spaces, such as simply connected differentiable 4-manifolds, the converse is also true, as long as the suspensions of the spaces are also of the same topological genus. This...
On the connectivity of finite subset spaces
We prove that the space of nonempty subsets of cardinality at most k in a bouquet of m+1-dimensional spheres is (m+k-2)-connected. This, as shown by Tuffley, implies that the space is (m+k-2)-connected for any m-connected cell complex X.
On the Construction of Harmonie and Holomorphic Maps Between Surfaces.
On the Construction of New Finite CW H-Spaces.
On the construction of the Kan loop group.
On the derivative of the stable homotopy of mapping spaces.
On the derived category of sheaves on a manifold.
On the Detection of Some Elements in the Image of the Double Transfer Using K(2)-Theory.
On the division by the circle
On the essential height of homotopy trees with finite fundamental group
On the evaluation map.
On the exact completion of the homotopy category
On the existence and classification of Co-H-structures.
On the Finiteness Obstruction of Nilpotent Spaces of the Same Genus.
On the formality of equivariant classifying spaces.
On the foundations of Topology