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Mostrando ítems 1-10 de 32
Artículo
On manifolds with nonhomogeneous factors
(Springer, 2012-06)
We present simple examples of finite-dimensional connected homogeneous spaces (they are actually topological manifolds) with nonhomogeneous and nonrigid factors. In particular, we give an elementary solution of an old ...
Artículo
Minimal covers of open manifolds with half-spaces and the proper L-S category of product spaces
(Belgian Mathematical Society, 2002-09)
Classical results about the Lusternik-Schnirelmann category of product spaces have their analogues in the category of proper maps. By comparing the proper Lusternik-Schnirelmann category of an open manifold X with ...
Artículo
Homotopy in digital spaces
(Elsevier, 2003-01-15)
The main contribution of this paper is a new “extrinsic” digital fundamental group that can be readily generalized to define higher homotopy groups for arbitrary digital spaces. We show that the digital fundamental group ...
Artículo
On the locally finite chain algebra of a proper homotopy type
(Belgian Mathematical Society, 1996)
In the classical paper [A-H] Adams-Hilton constructed a free chain algebra which is an important algebraic model of a simply connected homotopy type. We show that this chain algebra (endowed with an additional structure ...
Artículo
Approximation axiomatique à la théorie du bordisme
(Université de Picardie Jules Verne, 1989)
This paper gives an axiomatical approximation to Bordism Theory. It proves those properties of a geometrical nature that a class of models must satisfy to develop a bordism theory in an abstract category.
Artículo
Algunos resultados sobre el bordismo de variedades de homología
(Real Academia de Ciencias Exactas, Físicas y Naturales, 1987)
En este artículo probamos que las variedades de homología (HML-variedades) definen una teoría de bordismo singular que es la teoría de homología generalizada asociada al Espectro de Martin. Usando ios números característicos ...
Artículo
On the topology of locally 2-connected Peano continua
(Rocky Mountain Mathematics Consortium, 2012)
Several recent results by Thomassen ([23 The locally connected compatc metric spaces embeddable in the plane, Combinatorica 24 (2004), 699-718, 24] Classification of locally 2-connected compact metric spaces, Combinatorica ...
Tesis Doctoral
La sucesión de fibración homotópica de K-teorías asociada a la localización de categorías exactas
(2001)
En la tesis que se presenta se extienden fundamentalmente algunos resultados y metodologías de mediados de los años 80 y 90 sobre la k-categoría algebraica de categorías aditivas al estudio de la k-categoría algebraica de ...
Artículo
The equivariant category of proper G-Spaces
(Rocky Mountain Mathematics Consortium, 2001)
Artículo
Weak- Z-Structures and one-relator groups
(ScienceDirect, 2022-07-22)
Motivated by the notion of boundary for hyperbolic and groups, Bestvina [2] introduced the notion of a (weak) -structure and (weak) -boundary for a group G of type (i.e., having a finite complex), with ...