Topological Groups
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. Optimal pressure management in water distribution networks through district metered area creation based on machine learning
RESUMO A gestão integrada dos sistemas de abastecimento de água com o uso eficiente dos recursos requer a otimização das operações. O agrupamento das redes de abastecimento de água em pequenas unidades, chamadas de distritos de medição (DMAs), é uma estratégia que permite o desenvolvimento de regras operacionais específicas, responsáveis por mel
RBRH. Publicado em: 26/09/2019
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2. Periodic complex map germs and foliations
Abstract In this paper we study topological and analytical conditions on the orbits of a germ of diffeomorphism in the complex plane in order to obtain periodicity. In particular, we give a simple proof of a finiteness criteria for groups of analytic diffeomorphisms, stated in Brochero Martínez 2003. As an application, we derive some consequences about the
An. Acad. Bras. Ciênc.. Publicado em: 2017-12
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3. On topological groups with an approximate fixed point property
Abstract A topological group G has the Approximate Fixed Point (AFP) property on a bounded convex subset C of a locally convex space if every continuous affine action of G on C admits a net ( x i ), x i ∈ C, such that x i - g x i ⟶ 0 for all g ∈ G. In this work, we study the relationship between this property and amenability.
An. Acad. Bras. Ciênc.. Publicado em: 2017-03
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4. Geometry and Topology Optimization of Statically Determinate Beams under Fixed and Most Unfavorably Distributed Load
Abstract The paper concerns topology and geometry optimization of statically determinate beams with an arbitrary number of pin supports. The beams are simultaneously exposed to uniform dead load and arbitrarily distributed live load and optimized for the absolute maximum bending moment. First, all the beams with fixed topology are subjected to geometrical op
Lat. Am. j. solids struct.. Publicado em: 2016-04
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5. CAPITAL SOCIAL NO TWITTER: O CASO DOS CANDIDATOS À PREFEITURA DE SÃO PAULO
ABSTRACT The objective of this study is to analyze how relationships between individuals are structured in a virtual network, Twitter. The analysis is supported by theories of social capital. Twitter accounts of the candidates for São Paulo mayoral election, in the year 2012, were analyzed by using the NodeXL program. Quantitative validation by means of the
JISTEM J.Inf.Syst. Technol. Manag.. Publicado em: 2015-12
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6. Completamentos Pro-p de grupos de dualidade de Poincaré / Pro-p completions of Poincaré duality groups
In this work we give in the Main Theorems suffiient conditions for that the pro- p completion of an abstract orientable PDn group to be virtually a pro-p PDs group for some s ? n - 2 with n ? 4. This result is a generalization of the Theorem 3 in [K-2009]. Our proof is based on [K-2009] and on the results of A. A. Korenev [Ko-2004] and [Ko-2005]. Furthermore
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/08/2012
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7. Um estudo sobre computação quântica topológica : novas portas para o modelo de fibonacci / A Study on topological quantum computation : new gates to the fibonacci model
Neste trabalho, apresentamos um estudo sobre Computação Quântica Topológica, uma área de pesquisa inserida na computação quântica que busca resolver o problema da decoerência na construção do computador quântico de uma maneira inovadora. Essa computação envolve aspectos de áreas distintas relacionadas a mecânica quântica: teoria de grupos, r
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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8. Countably compact group topologies on non-torsion abelian groups from selective ultrafilters / Topologias enumeravelmente compactas em grupos abelianos de não torção via ultrafiltros seletivos
Assuming the existence of $\\mathfrak c$ pairwise incomparable selective ultrafilters (according to the Rudin-Keisler ordering) we prove that the free abelian group of cardinality $\\mathfrak c$ admits a countably compact group topology that contains a non-trivial convergent sequence. Under the same hypothesis, we show that an abelian almost torsion-free top
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 11/03/2011
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9. A topological approach to the identification of critical measurements in power-system state estimation
This paper presents a new topological methodology for critical measurements identification in observable networks. A measurement is said to be critical, in an observability sense, if its removal from the measurement set makes the associated system lose observability. The proposed methodology is based on the properties of both, observable measurement subnetwo
Publicado em: 2011
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10. Produtividade da compacidade enumerável em grupos topológicos / Productivity of countable compactness in topological groups.
O principal objetivo desta dissertacão é estudar a produtividade da compacidade enumerável em grupos topológicos. Vários contra-exemplos foram descritos.
Publicado em: 2009
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11. The use of computational chemistry in the studies of chemical processes involved in electrospray ionization / A utilização da química computacional em processos químicos relacionados à ionização por electrospray
In recent decades, the development of atmospheric ionization techniques improved mass spectrometry, principally for characterization and structural elucidation of high-molecular weight compounds. The development of spray ionization was responsible for the spread of applications and studies of mass spectrometry, where the electrospray ionization is the most v
Publicado em: 2009
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12. Análise de agrupamentos baseada na topologia dos dados e em mapas auto-organizáveis. / Data clustering based on data topology and self organizing-maps.
More than ever, in environment of large decision making, the analysis of data stored massively becomes a real need in almost all knowledge areas. The data analyzing process covers the performing of different tasks that can be executed for different techniques and strategies as the data clustering analysis. This research is focused on the analysis task of dat
Publicado em: 2008