Lusternik-Schnirelmann category and minimal coverings with contractible sets.
Mónica Clapp, Luis Montejano (1987)
Manuscripta mathematica
Similarity:
Mónica Clapp, Luis Montejano (1987)
Manuscripta mathematica
Similarity:
Luis Montejano (1983)
Manuscripta mathematica
Similarity:
Dieter Puppe, Mónica Clapp (1983)
Manuscripta mathematica
Similarity:
Martin Arkowitz (1989)
Manuscripta mathematica
Similarity:
Francisco Díaz, Sergio Rodríguez-Machín (2006)
Open Mathematics
Similarity:
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...
Octavian Cornea (1995)
Annales scientifiques de l'École Normale Supérieure
Similarity:
Tammo tom Dieck (1973/74)
Manuscripta mathematica
Similarity:
Gatsinzi, J.-B. (1996)
Bulletin of the Belgian Mathematical Society - Simon Stevin
Similarity:
Volker Puppe (1974)
Manuscripta mathematica
Similarity:
Iwase, Norio, Stanley, Donald, Strom, Jeffrey (2004)
Algebraic & Geometric Topology
Similarity:
Floris Takens (1970)
Compositio Mathematica
Similarity:
Hubertus Meiwes (1982)
Manuscripta mathematica
Similarity:
Harald Lindner (1978/79)
Manuscripta mathematica
Similarity: