Now showing items 1-10 of 89
Conceptos básicos sobre isocriptografía siguiendo el modelo MCIM [Presentation]
(Universidad Politécnica de Madrid, 2004)
Una de las aplicaciones prácticas de la isoteoría de Santilli que ha surgido en los últimos años se refiere al campo de la criptografía. Generalizando la unidad utilizada en los criptogramas se originan una nueva clase ...
Grupos de Lie asociados a álgebras de Lie filiformes [PhD Thesis]
En esta tesis se plantea el problema de determinar a partir de un álgebra de Lie, cuáles son los grupos Lie cuya álgebra de Lie es L. El objetivo fundamental entonces consiste en introducir mecanismos adecuados para hallar ...
A constructive method to determine the variety of filiform Lie algebras [Article]
(Institute of Mathematics, Czech Academy of Sciences, 2006-12)
In this paper we use cohomology of Lie algebras to study the variety of laws associated with filiform Lie algebras of a given dimension. As the main result, we describe a constructive way to find a small set of polynomials ...
On the connectivity of skeletons of pseudomanifolds with boundary [Article]
(Mathematical Institute, Academy of Sciences of the Czech Republic, 2002)
In this note we show that 1-skeletons and 2-skeletons of n-pseudomanifolds with full boundary are (n+ 1)-connected graphs and n-connected 2-complexes, respectively. This generalizes previous results due to Barnette and Woon.
Submanifolds weakly associated with graphs [Article]
(Indian Academy of Sciences, 2009-06)
We establish an interesting link between differential geometry and graph theory by defining submanifolds weakly associated with graphs. We prove that, in a local sense, every submanifold satisfies such an association, and ...
Willmore Tori in a wide family of conformal structures on odd dimensional spheres [Article]
(Rocky Mountain Mathematics Consortium, 2000)
We obtain a variable reduction principle for the Willmore variational problem in an ample class of conformal structures on S2n+1. This variational problem is transformed into another one, associated with an elastic-energ ...
Simply connected lie subgroups of the unipotent Lie group of order 4 [Article]
(Soochow University, Department of Mathematics, 2006-04)
In this paper we obtain simply connected Lie subgroups (up to isomorphism) of the Lie group G4 of upper triangular matrices of order 4 having “1” in its main diagonal. To do it, we determine Lie subalgebras of the Lie ...
Amalgamated products and properly 3-realizable groups [Article]
In this paper, we show that the class of all properly 3-realizable groups is closed under amalgamated free products (and HNN-extensions) over finite groups. We recall that G is said to be properly 3-realizable if there ...
Magnetic vortex filament flows [Article]
(AIP Publishing, 2007-08)
We exhibit a variational approach to study the magnetic flow associated with a Killing magnetic field in dimension 3. In this context, the solutions of the Lorentz force equation are viewed as Kirchhoff elastic rods and ...