Relationen für primäre Homotopieoperationen und eine verallgemeinerte EHP-Sequenz
Relative directed homotopy theory of partially ordered spaces.
Relative epimorphisms and monomorphisms in homotopy theory
Remark on ANR-divisors
Remarks on deformability
Reparametrizations of continuous paths.
Représentation des groupes d'extension. Applications
Representation Forms for Metacyclic groups.
Resolutions of spaces and proper inverse systems in shape theory
Resolutions Of Spaces Are Strong Expansions
Restoration of structure
Rétractes d'un espace
Notre but dans ce texte est de montrer le résultat suivant : Si est un C.W. complexe, simplement connexe, de type fini, avec finiment engendré comme algèbre de Lie, alors, à équivalence d’homotopie rationnelle près, il n’existe qu’un nombre fini de rétractes de . L’existence d’un nombre fini de rétractes a été obtenue par L. Renner en 1990 dans le cas où est finiment engendré en tant que -algèbre. Notre résultat élargit ainsi le cadre des espaces n’ayant, à équivalence d’homotopie rationnelle...
Retracts and homotopies for multi-maps
Riduzioni omotopicamente invarianti di insiemi parzialmente ordinati
Rigidity of Holomorphic Self-Mappings and the Automorphism Groups of Hyperbolic Stein Spaces.
Rigidity Properties of Compact Lie Groups Modulo Maximal Tori.
Salvetti complex, spectral sequences and cohomology of Artin groups
The aim of this short survey is to give a quick introduction to the Salvetti complex as a tool for the study of the cohomology of Artin groups. In particular we show how a spectral sequence induced by a filtration on the complex provides a very natural and useful method to study recursively the cohomology of Artin groups, simplifying many computations. In the last section some examples of applications are presented.
Scindement d’une équivalence d’homotopie en dimension
Section and Base-Point Functors.
Self homotopy equivalences of classifying spaces of compact connected Lie groups
We describe, for any compact connected Lie group G and any prime p, the monoid of self maps → which are rational equivalences. Here, denotes the p-adic completion of the classifying space of G. Among other things, we show that two such maps are homotopic if and only if they induce the same homomorphism in rational cohomology, if and only if their restrictions to the classifying space of the maximal torus of G are homotopic.