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Artículo
Una curiosa combinación de Topología, Álgebra y Combinatoria: los cuadrados de Steenrod
(Real Sociedad Matemática Española, 1998)
Artículo
Las álgebras de Lie (n-3)-Filiformes como extensiones por derivaciones
(Universidad de Extremadura, 1998)
Artículo
A Methodology for Modelling Travel Distances by Bias Estimation
(Sociedad de Estadistica e lnvestigaci6n Operativa, 1998)
Round norms τl p, p ∈ (1,2] and block norms have been utilised for modelling actual distances in transportation networks. A geometric setting will permit the establishment of a relationship between bias of the road network ...
Artículo
On the planarity of Peano generalized continua: An extension of a theorem of S. Claytor
(Institute of Mathematics, Polish Academy of Sciences, 1998)
We extend a theorem of S. Claytor in order to characterize the Peano generalized continua which are embeddable into the 2-sphere. We also give a characterization of the Peano generalized continua which admit closed embeddings ...