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Nomenclatura Unesco > (12) Matemáticas > (1210) Topología
(1210.01) Espacios abstractos (1210.02) Cohomología
(1210.03) Variedades diferenciales (1210.04) Espacios fibrados
(1210.05) Topología general (1210.06) Homología
(1210.07) Homotopía (1210.08) Grupos de Lie
(1210.09) Topología lineal de entornos (1210.10) Topología cuasilineal
(1210.11) Topología tridimensional (1210.12) Grupos topológicos
(1210.13) Dinámica topológica (1210.14) Recubrimientos topológicos
(1210.15) Variedades topológicas (1210.16) Grupos de transformación
(1210.99) Otras (especificar)

Mostrando recursos 1 - 20 de 9.885

1. Progressive Simplification of Tetrahedral Meshes Preserving All Isosurface Topologies - All Isosurface Topologies
In this paper, we propose a novel technique for constructing multiple levels of a tetrahedral volume dataset while preserving the topologies of all isosurfaces embedded in the data. Our simplification technique has two major phases. In the segmentation phase, we segment the volume data into topological-equivalence regions, that is, the sub-volumes within each of which all isosurfaces have the same topology. In the simplification phase, we simplify each topological-equivalence region independently, one by one, by collapsing edges from the smallest to the largest errors (within the user-specified error tolerance, for a given error metrics), and ensure that we do not collapse edges that may cause an...

2. Topología de singularidades de hipersuperficies : Número de Milnor e invariantes polares - Melle Hernández, Alejandro
En esta memoria se obtienen formulas que relacionan el numero de milnor de un germen de hipersuperficie compleja con singularidad aislada con la geometria de las hipersuperficies proyectivas definidas por los ceros de los polinomios homogéneos que aparecen en la descomposición en componentes homogéneas de la función analítica cuyo lugar de ceros describe el germen.igualmente se dan criterios de suficiencia topología para singularidades aisladas en las cuales el cono tangente verifica ciertas condiciones geométricas. Esta descripción topología se hace en función de los invariantes polares de la singularidad.

3. Topologías de lo virtual y lo digital: comunicación, subjetivación y poder. - Silva Echeto, Víctor Manuel
El texto analiza las topologías de lo digital, desde los cambios que se producen por la emergencia de la virtualidad en el ciberespacio y la crisis que le genera al ¿sueño antropológico¿, es decir, de la binaria relación entre identidad y alteridad y la conformación del Hombre en occidente. Plantea, también, las características espacio- temporales del no lugar virtual y las mutaciones que se producen en los procesos de subjetivación. Finalmente, propone vías de resistencia y trasgresión del no lugar digital desde el propio ciberespacio.

4. Uma topologia epistemológica como introdução à bioética : (uma abordagem transdisciplinar) - Enidio Ilario
A reflexão Bioética, em tempos de globalização, defronta-se com o desafio de abarcar, de forma sistemática, as visões de mundo que definem, em última instância, as atitudes existenciais e as prioridades políticas, econômicas e sociais da humanidade. O objetivo desse trabalho foi o de desenvolver uma metodologia que permita contribuir para dar conta de tal desafio, renovando assim a chamada “via longa” da Ética e a abordagem ontológica na Bioética. Para tal intento buscou-se um método que chamo hiperdialético, posto que pressupõe o não desconhecimento das superações concretas, parciais e deficitárias que ocorrem no mundo real, no pensamento, no comportamento...

5. Process Topologies
Introduction This chapter discusses the MPI topology mechanism. A topology is an extra, optional attribute that one can give to an intra-communicator; topologies cannot be added to intercommunicators. A topology can provide a convenient naming mechanism for the processes of a group (within a communicator), and additionally, may assist the runtime system in mapping the processes onto hardware. As stated in chapter ??, a process group in MPI is a collection of n processes. Each process in the group is assigned a rank between 0 and n-1. In many parallel applications a linear ranking of processes does not adequately reflect the logical communication pattern of the processes (which is...

6. Topologie Virtuelle pour Reseaux Hybrides - Topologie Virtuelle,Rseaux Hybrides,Fabrice Theoleyre,Fabrice Valois,Projet Ars
Hybrid networks are heterogeneous networks merging wireless nodes, ad hoc nodes and where the interconnection to IP world is an important topic through gateways called AP (access point). Indeed, each node can be contacted and can contact another node in Internet. To reach that, architectures to support mobility management will be study. The solutions inspired by wired networks are not particularly suited to hybrid networks. We propose to use a virtual dynamic infrastructure including both backbone and clusters. A backbone is suited to spare energy, optimize control tra#c di#usion, hierarchize participants, ...The clusters are intended to create services areas, and to handle particularly the mobility management. We present...

7. Arithmetically Related Ideal Topologies
The late J.Knopfmacher and the author [10] have studied some ties between arithmetical properties of the multiplicative structure commutative rings with identity and the topologies induces by some coset topologies. In the present communication it is shown that the ideas used there are capable of a further extension, and a condition implying the existence of in- nity many prime x{ideals is proved using topologies induced by x{systems on commutative semigroups with identity.

8. Topologie Virtuelle pour Réseaux Hybrides - Topologie Virtuelle,Rseaux Hybrides,Fabrice Theoleyre,Fabrice Valois,Projet Ars
Hybrid networks are heterogeneous networks merging wireless nodes, ad hoc nodes and where the interconnection to IP world is an important topic through gateways called AP (access point). Indeed, each node can be contacted and can contact another node in Internet. To reach that, architectures to support mobility management will be study. The solutions inspired by wired networks are not particularly suited to hybrid networks. We propose to use a virtual dynamic infrastructure including both backbone and clusters. A backbone is suited to spare energy, optimize control tra#c di#usion, hierarchize participants, . . . The clusters are intended to create services areas, and to handle particularly the mobility...

9. Neural Network Topologies - E. Fiesler
Introduction A neural network is a network of neurons. This high level definition applies to both biological neural networks and artificial neural networks. This chapter is mainly concerned with the various ways in which neurons can be interconnected to form the networks or network topologies used in artificial neural networks, even though some underlying principles are also applicable to their biological counterparts. The term `neural network' is therefore used to stand for `artificial neural network' in the remainder of this chapter, unless explicitly stated otherwise. The main purpose of this chapter is to provide a base for the rest of the handbook and of the next chapter...

10. Topologías no conmutativas y haces - Mendoza Aguilar, Judit

11. Topologías no conmutativas y haces - Mendoza Aguilar, Judit

12. Topologías cardinales / Gerardo Chacón - Chacón, Gerardo; Universidad de los Andes. Facultad de Ciencias, Tesis, 1993
Mecanografiado

13. El método de Hückel y la topología molecular - Durand Niconoff, J. Sergio; Palma Almendra, Alejandro

14. Dislocated Topologies - Pascal Hitzler,Anthony Karel Seda
We study a generalized notion of topology which evolved out of applications in the area of logic programming semantics. The generalization is obtained by relaxing the requirement that a neighbourhood of a point includes the point itself, and by allowing neighbourhoods of points to be empty. The corresponding generalized notion of metric is obtained by allowing points to have non-zero distance to themselves. We further show that it is meaningful to discuss neighbourhoods, convergence, and continuity in these spaces. A generalized version of the Banach contraction mapping theorem can also be established. We show nally how the generalized metrics studied here can be obtained from conventional metrics. Contents 1 Introduction...

15. Dislocated Topologies - Pascal Hitzler,Anthony Karel Seda
We study a generalized notion of topology which evolved out of applications in the area of logic programming semantics. The generalization is obtained by relaxing the requirement that a neighbourhood of a point includes the point itself, and by allowing neighbourhoods of points to be empty. The corresponding generalized notion of metric is obtained by allowing points to have non-zero distance to themselves. We further show that it is meaningful to discuss neighbourhoods, convergence, and continuity in these spaces. A generalized version of the Banach contraction mapping theorem can also be established. We show finally how the generalized metrics studied here can be obtained from conventional metrics. Contents 1 Introduction...

16. Hypercube-Like Topologies - Darcy Quesnel
The Hypercube is a popular interconnection topology for multicomputers for a variety of reasons. Graphs that are related to the Hypercube have many of the same properties, as well as other additional desirable properties. In particular, we will look at the properties of the Fibonacci Cube, the Hyper Petersen Graph, and the Pancake and Star Graphs. We will explore routing on all these topologies. And, we will compare all these topologies to that of the Hypercube. 1 Introduction 1.1 Some Graph Theoretic Terms Graph We define a graph G = (V G ; EG ), where VG is the vertex set and EG is the edge set. We say...

17. Complementación en el retículo de topologías / Janneth Arelis Díaz Casique - Díaz Casique, Janneth Arelis; Universidad de Los Andes. Facultad de Ciencias, Magister Scientiae, 1999
Mecanografiado

18. On locally convex topologies in sequence spaces. - Tort Pinilla, Manuel
This paper deals with locally convex topological sequence spaces. We first consider solid topologies in order to obtain some results that will be useful later. The main part of this paper is devoted to a detailed study of the normal topology of a dual pair of sequence spaces. We obtain criterions for this topology to be normable or metrizable, and conditions under which it coincides with the Mackey topology on echelon and coechelon spaces of order p. Finally we use the former results on solid topologies to study the subspace constituted by the elements of the a-dual of a sequence...

19. La Topología estricta BP en el espacio CB (X,E) : una caracterización / Jorge Vielma Barrios - Vielma Barrios, Jorge; Universidad de los Andes. Facultad de Ciencias, Trabajo de Ascenso, 1987
Mecanografiado

20. Axiomas de numerabilidad, separación y uniformidad en las A-topologías / José A. Rangel Mariño - Rangel Mariño, José A; Vielma Barrios, Jorge E; Universidad de Los Andes. Facultad de Ciencias, Tesis, 1999
Mecanografiado

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