Calculs de groupes d'homotopie stables de la sphère, par la suite spectrale d'Adams-Novikov.
Cancellation law for Homotopy Equivalent representations of Groups of odd order.
Categorical length, relative L-S category and higher Hopf invariants
In this paper we introduce the categorical length, a homotopy version of Fox categorical sequence, and an extended version of relative L-S category which contains the classical notions of Berstein-Ganea and Fadell-Husseini. We then show that, for a space or a pair, the categorical length for categorical sequences is precisely the L-S category or the relative L-S category in the sense of Fadell-Husseini respectively. Higher Hopf invariants, cup length, module weights, and recent computations by Kono...
Category with a natural cone
Generally, in homotopy theory a cylinder object (or, its dual, a path object) is used to define homotopy between morphisms, and a cone object is used to build exact sequences of homotopy groups. Here, an axiomatic theory based on a cone functor is given. Suspension objects are associated to based objects and cofibrations, obtaining homotopy groups referred to an object and relative to a cofibration, respectively. Exact sequences of these groups are built. Algebraic and particular examples are given....
c-continuous fundamental groups
Čech cohomology and covering dimension for topological spaces
Central Adams operators.
Classifying finite-sheeted covering mappings of paracompact spaces.
The main result of the present paper is a classification theorem for finite-sheeted covering mappings over connected paracompact spaces. This theorem is a generalization of the classical classification theorem for covering mappings over a connected locally pathwise connected semi-locally 1-connected space in the finite-sheeted case. To achieve the result we use the classification theorem for overlay structures which was recently proved by S. Mardesic and V. Matijevic (Theorems 1 and 4 of [5]).
Cobordism of Hyperframed Manifolds and the Stable J-Homomorphism.
Cobordisme d'immersions
Cobordismes de plongments et produits homotopiques
Coherent prohomotopical algebra
Coherent prohomotopy theory
Co-H-grupos: Obstrucción a la commutatividad y aplicaciones centrales.
Cohomotopy groups and shape in the sense of Fox
Coincidence free pairs of maps
This paper centers around two basic problems of topological coincidence theory. First, try to measure (with the help of Nielsen and minimum numbers) how far a given pair of maps is from being loose, i.e. from being homotopic to a pair of coincidence free maps. Secondly, describe the set of loose pairs of homotopy classes. We give a brief (and necessarily very incomplete) survey of some old and new advances concerning the first problem. Then we attack the second problem mainly in the setting of homotopy...
Coincidence index for fiber-preserving maps an approach to stable cohomotopy.
Collared cospans, cohomotopy and TQFT. (Cospans in algebraic topology. II).
Commutativeness of Fundamental Groups of Topological Groups
In this article we prove that fundamental groups based at the unit point of topological groups are commutative [11].
Compact Lie groups with isomorphic homotopy groups.