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Mostrando ítems 221-230 de 281
Artículo
The computation of Abelian subalgebras in low-dimensional solvable Lie algebras
(World Scientific and Engineering Academy and Society (WSEAS), 2010-01)
The main goal of this paper is to compute the maximal abelian dimension of each solvable nondecomposable Lie algebra of dimension less than 7. To do it, we apply an algorithmic method which goes ruling out non-valid maximal ...
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 ...
Ponencia
Computational method for obtaining filiform Lie algebras of arbitrary dimension
(WSEAS Press, 2011-09)
This paper shows a new computational method to obtain filiform Lie algebras, which is based on the relation between some known invariants of these algebras and the maximal dimension of their abelian ideals. Using this ...
Artículo
A digital index theorem
(World Scientific Publishing, 2001-11)
This paper is devoted to prove a Digital Index Theorem for digital (n − 1)-manifolds in a digital space (Rn, f), where f belongs to a large family of lighting functions on the standard cubical decomposition Rn of the ...
Tesis Doctoral
Funciones de Morse discretas sobre complejos infinitos
(2003)
Esta memoria está dedicada a la extensión para complejos simpliciales infinitos de los conceptos y resultados de la teoría de Morse discreta ya estudiados en el caso finito. En un principio, dicho estudio se centrará en ...
Artículo
On slant submanifolds of neutral Kaehler manifolds
(Mathematical Society of the Republic of China, 2010-04)
An indefinite Riemannian manifold is called neutral it its index is equal to one half of its dimension and an indefinite Kaehler manifold is called neutral Kaehler if its complex index is equal to the half of its complex ...
Ponencia
K-Factores en nubes bicromáticas
(2007)
Consideramos una colección de puntos bicromática y nos preguntamos cuántos puntos adicionales son necesarios considerar para asegurar la existencia de un k {factor. Dos tipos de puntos adicionales serán tratados: puntos ...
Ponencia
Primeras mujeres doctoras en Química en España
(Unidad para la Igualdad, Universidad de Sevilla, 2012)
Continuando la línea de investigación iniciada en el primero de esta serie de congresos, relativa a mostrar las biografías de mujeres españolas de primeros del siglo pasado, pioneras de la ciencia aunque auténticas ...
Artículo
Sasaki-Einstein and paraSasaki-Einstein metrics from (κ,μ)-structures
(Elsevier, 2013-11)
We prove that every contact metric (κ, µ)-space admits a canonical η-Einstein Sasakian or η-Einstein paraSasakian metric. An explicit expression for the curvature tensor fields of those metrics is given and we find the ...
Artículo
Lusternik-Schnirelmann invariants in proper homotopy theory
(University of California, 1992)
We introduce and study proper homotopy invariants of the Lusternik-Schnirelmann type, p-cat (-), p-Cat(-), and cat e(-) in the category of Γ2-locally compact spaces and proper maps. As an application, Rn (n Φ 3) is ...