On Postnikov-true families of complexes and the Adams completion
On Sectioning multiples of vector bundles and more general homomorphism bundles.
On the Connes operator in Hochschild homology.
On the De Rham Invariant of a Fibered (4r + l)-Dimensional Orientable Manifold.
On the Detection of Some Elements in the Image of the Double Transfer Using K(2)-Theory.
On the Extension of Certain Maps with Values in Spheres
Let E be an oriented, smooth and closed m-dimensional manifold with m ≥ 2 and V ⊂ E an oriented, connected, smooth and closed (m-2)-dimensional submanifold which is homologous to zero in E. Let be the standard inclusion, where Sⁿ is the n-sphere and n ≥ 3. We prove the following extension result: if is a smooth map, then h extends to a smooth map g: E → Sⁿ transverse to and with . Using this result, we give a new and simpler proof of a theorem of Carlos Biasi related to the ambiental bordism...
On the fundamental group of a space of sections.
On the homology of the special linear group ove a number field.
On the homotopy transfer of structures
The present article is devoted to the study of transfers for structures, their maps and homotopies, as developed in [7]. In particular, we supply the proofs of claims formulated therein and provide their extension by comparing them with the former approach based on the homological perturbation lemma.
On the Lusternik-Schnirelmann Category of Lie Groups: II.
On the non-torsion elements in the algebraic K-theory of rings of integers.
On the Realization of Certain Modules over the Steenrod Algebra.
On the realization of unstable modules. (Sur la realisation des modules instables.)
On the ring of invariants of F*2n.
On the sharpness of the ... 2 and ... 1 Nielsen numbers.
On the Steenrod operations in cyclic cohomology.
On the Unstable Homotopy Spectral Sequences.
On uncountable collections of continua and their span
We prove that if the Euclidean plane contains an uncountable collection of pairwise disjoint copies of a tree-like continuum X, then the symmetric span of X is zero, sX = 0. We also construct a modification of the Oversteegen-Tymchatyn example: for each ε > 0 there exists a tree such that σX < ε but X cannot be covered by any 1-chain. These are partial solutions of some well-known problems in continua theory.
On -rings and topological realization.
Operations and cooperations in elliptic cohomology. I: Generalized modular forms and the cooperation algebra.