On the fundamental dimension of approximatively 1-connected compacta
On the fundamental dimension of the Cartesian product of compacta with the fundamental dimension 2
On the fundamental group of a mapping space. An example
On the genus of finite CW-H-spaces
On the genus of free loop fibrations over -spaces.
On the geometry of free loop spaces.
On the group of homotopy equivalences of simply connected five manifolds.
On the groups of a sphere
In questo articolo studiamo i gruppi di una sfera e proviamo che il gruppo è isomorfo all'ennesimo gruppo di omotopia di , nell'ipotesi che sia una classe coconnessa di links ammissibili.
On the Homology of Non-Connected Monoids and Their Associated Groups
On the homology of the special linear group ove a number field.
On the homotopy embeddability of complexes in Euclidean space. I. The weak thickening theorem.
On the homotopy equivalence of the spaces of proper and local maps
We prove that for n > 1 the space of proper maps P 0(n, k) and the space of local maps F 0(n, k) are not homotopy equivalent.
On the homotopy groups of a finite dimensional space.
On the homotopy inverse limits of transfer maps.
On the Homotopy of Non-Nilpotent Spaces.
On the homotopy of the complement to plane algebraic curves.
On the Homotopy Properties of Thom Complexes.
On the Homotopy Type of Classifying Spaces.
On the homotopy type of (n-1)-connected (3n+1)-dimensional free chain Lie algebra
Let R be a subring ring of Q. We reserve the symbol p for the least prime which is not a unit in R; if R ⊒Q, then p=∞. Denote by DGL nnp, n≥1, the category of (n-1)-connected np-dimensional differential graded free Lie algebras over R. In [1] D. Anick has shown that there is a reasonable concept of homotopy in the category DGL nnp. In this work we intend to answer the following two questions: Given an object (L(V), ϖ) in DGL n3n+2 and denote by S(L(V), ϖ) the class of objects homotopy equivalent...
On the Hurewicz theorem for wedge sum of spheres.