Topological Degree
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Reliability Analysis for Aviation Airline Network Based on Complex Network
ABSTRACT: In order to improve the reliability of aviation airline network, this paper presents an empirical analysis on the airline network structure of an aviation company in China from the perspective of complex network, and the calculation result of the statistical features and degree distribution of the network, proves that the network is a small-world n
J. Aerosp. Technol. Manag.. Publicado em: 2014-06
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2. Existência e multiplicidade de soluções de problemas de contorno elípticos de quarta ordem via métodos topológicos / Existence and multiplicity of solutions to elliptic boundary value problems by topological methods
Neste trabalho, utilizamos métodos topológicos para estudar existência e multiplicidade de soluções de Problemas de Contorno Elípticos Não Lineares de 4a ordem. Mais precisamente, utilizamos resultados sobre componentes conexas de pontos fixos e tambem bifurcação global, para provar existência e multiplicidade de soluções fracas de Equações Dif
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012
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3. Existência e multiplicidade de soluções de problemas de contorno elípticos de quarta ordem via métodos topológicos / Existence and multiplicity of solutions to elliptic boundary value problems by topological methods
Neste trabalho, utilizamos métodos topológicos para estudar existência e multiplicidade de soluções de Problemas de Contorno Elípticos Não Lineares de 4a ordem. Mais precisamente, utilizamos resultados sobre componentes conexas de pontos fixos e tambem bifurcação global, para provar existência e multiplicidade de soluções fracas de Equações Dif
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012
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4. Lyapunov minimizing measures for expanding maps of the circle
We consider the set of maps f є Fα+=Uβ >αC1β of the circle which are covering maps of degree D, expanding, minxєS1 f ¹(x) > 1 and orientation preserving. We are interested in characterizing the set of suchmaps f which admit a unique f -invariant probability measure _ minimizing ∫1n f ¹ d µ over all f -invariant probability measures. We show there
Publicado em: 2011
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5. Caminhadas determinísticas em redes complexas aplicadas em visão computacional / Determinist walks on complex applied in computer vision
Complex networks have received a growing interest in several areas of knowledge. This growth is mainly due to its flexibility in modeling and simulating topological structures that appear in our daily life. In most cases, complex networks characterization are based on basic measurements such as average degree, hierarchical degree, clustering coefficient, amo
Publicado em: 2010
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6. About 3-manifolds supporting some actions of R POT. 2and a Morses conjecture / Sobre 3-variedades suportando certas ações de R POT. 2e uma Conjectura de Morse
First we consider a family of C POT. 2actions of R POT. 2on a closed 3-manifold. One of the conditions of this family is that it admits only a finite number of singular orbits, which are all diffeomorphic to circle. For this family we will give a description of the structure of the orbits as well the 3-manifolds supporting this actions. This generalizes resu
Publicado em: 2010
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7. Identification studies of possible targets for azomethinic or oxadiazolinic nitrocompounds with antifungal and anti-T. cruzi activity / Estudos de identificação de possíveis alvos para nitro-compostos azometínicos ou oxadiazolínicos com atividade antifúngica e anti-T. cruzi
This study had as objective the study of Tridimensional Quantitative Structure-Activity Relationships, 3D QSAR, and the identification of potential targets for 5-nitro-heterocyclic compounds with azomethynic or oxadiazolynic structures presenting dual antifungal and anti-T. cruzi bioactivity, aiming the discovery of new compounds to be used as possible drug
Publicado em: 2009
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8. On the phase portraits of quadratic polynomial vector fields having a rational first integral of degree 2 / Estudo dos retratos de fase dos campos de vetores polinomiais quadráticos com integral primeira racional de grau 2
Um dos principais problemas na teoria qualitativa das equações diferenciais em dimensão dois é apresentar, para uma dada família de sistemas diferenciais, uma classificação topológica dos retratos de fase de todos os sistemas dessa família. A proposta deste trabalho é estudar a técnica utilizada na classificação dos retratos de fase globais de s
Publicado em: 2009
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9. AnÃlise topolÃgica de redes de ligaÃÃes de hidrogÃnio em um sistema modelo
An analysis of the local and global topological properties of the hydrogen bonds networks between water molecules, generated by Monte Carlo (MC-NPT) simulations near to supercritical conditions and using the TIP5P model potential for water-water interactions, indicates the appearance of small worlds patterns with large clustering coefficient and small path l
Publicado em: 2006
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10. Nick-free formation of reciprocal heteroduplexes: a simple solution to the topological problem.
Because the individual strands of DNA are intertwined, formation of heteroduplex structures between duplexes--as in presumed recombination intermediates--presents a topological puzzle, known as the winding problem. Previous approaches to this problem have assumed that single-strand breaks are required to permit formation of fully coiled heteroduplexes. This
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11. An evolving model of undirected networks based on microscopic biological interaction systems
With protein or gene interaction systems as the background, this paper proposes an evolving model of biological undirected networks, which are consistent with some plausible mechanisms in biology. Through introducing a rule of preferential duplication of a node inversely proportional to the degree of existing nodes and an attribute of the age of the node (th
Springer Netherlands.
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12. Supercoiling-dependent flexibility of adenosine-tract-containing DNA detected by a topological method
Intrinsically bent DNA sequences have been implicated in the activation of transcription by promoting juxtaposition of DNA sequences near the terminal loop of a superhelical domain. We have developed a novel topological assay for DNA looping based on λ integrative recombination to study the effects of intrinsically bent DNA sequences on the tertiary structu
The National Academy of Sciences of the USA.