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Mostrando ítems 11-20 de 29
Artículo
Inmersiones condicionadas de grafos en superficies y seudosuperficies
(1999)
En este traba jo se procede a recapitular resultados conocidos sobre el problema de caracterizar los grafos que admiten inmersiones en super cies y en seudosuper - cies con todos los v ertices en la misma cara y se da ...
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Una curiosa combinación de Topología, Álgebra y Combinatoria: los cuadrados de Steenrod
(Real Sociedad Matemática Española, 1998)
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Las álgebras de Lie (n-3)-Filiformes como extensiones por derivaciones
(Universidad de Extremadura, 1998)
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Characterization of complex filiform Lie algebras of dimension 0 according to whether they are or not derived from others
(Universidad de Zaragoza, 1993)
In this paper, we characterize those Complex Filiform Lie Algeoras of dimension 0 which are derived from other Solvable Lie ALgebras of higher dimensions. This result and the previous one given in ({0]) allow us to lind a ...
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On the computability of the Steenrod squares
(Springer, 1996)
In questo lavoro offriamo in modo esplicito le formule di una serie de morfismi che controUano la mancanza di commutativit~ del prodotto cup a livello di cocateni, supponendo di lavorare con insiemi sempliciali; queste ...
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Artículo
A linear algorithm to recognize maximal generalized outerplanar graphs
(Institute of Mathematics of the Czech Academy of Sciences, 1997)
In this work, we get a combinatorial characterization for maximal generalized outerplanar graphs (mgo graphs). This result yields a recursive algorithm testing whether a graph is a mgo graph or not.
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Liaison-psychiatry: Reasons for consultation, diagnosis, and differences between medical and surgical patients
(Cambridge University Press, 1999)
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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 ...
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A link between menger’s theorem and infinite euler graphs
(Akadémiai Kiadó, 1997)