Weak Convergence
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. Interannual Variability of Precipitation for the Centro de Lançamento de Alcântara in ENSO-Neutral Years
ABSTRACT: The interannual variability of precipitation in El Niño/Southern Oscillation-neutral years was studied for the Centro de Lançamento de Alcântara region. Monthly precipitation, sea surface temperature, wind at 925 hPa and outgoing longwave radiation data from various gridded datasets for the 1951-2010 period (60 years) were used. The data groupin
J. Aerosp. Technol. Manag.. Publicado em: 2015-09
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2. A SURVEY ON MULTIOBJECTIVE DESCENT METHODS
We present a rigorous and comprehensive survey on extensions to the multicriteria setting of three well-known scalar optimization algorithms. Multiobjective versions of the steepest descent, the projected gradient and the Newton methods are analyzed in detail. At each iteration, the search directions of these methods are computed by solving real-valued optim
Pesqui. Oper.. Publicado em: 2014-12
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3. Finite element modeling for buckling analysis of hybrid piezoelectric beam under electromechanical loads
A one-dimensional finite element model for buckling analysis of hybrid piezoelectric beams under electromechanical load is presented in this work. The coupled zigzag theory is used for making the model. The inplane displacement is approximated as a combination of a global third order variation across the thickness with an additional layer wise linear variati
Lat. Am. j. solids struct.. Publicado em: 2014-10
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4. The Radial Brownian Web / A teia Browniana radial
Introduzimos uma familia de trajetorias aleatorias coalescentes com certo tipo de comportamento radial a qual chamaremos de Teia Poissoniana radial discreta. Mostramos que o limite fraco na escala difusiva desta familia e uma familia de trajetorias aleatorias coalescentes que chamaremos de Teia Browniana radial. Por m, caraterizamos o objeto limite como um m
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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5. A sensitivity result for quadratic semidefinite programs with an application to a sequential quadratic semidefinite programming algorithm
In this short note a sensitivity result for quadratic semidefinite programming is presented under a weak form of second order sufficient condition. Based on this result, also the local convergence of a sequential quadratic semidefinite programming algorithm extends to this weak second order sufficient condition. Mathematical subject classification: 90C22, 90
Computational & Applied Mathematics. Publicado em: 2012
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6. Relações entre os estilos cognitivos, as estratégias de solução e o desempenho dos estudantes na solução de problemas aritméticos e algébricos / Relation between the cognitive styles, the strategies of solution and performance of the students in the solutin of arithmetic and algebraic problems
This study aimed to verify the existence of relationships between cognitive styles and strategies of problem solving, cognitive styles and the variables gender and grade, cognitive styles and student performance in problem solving, as well the performance and type of strategy used in solving problems. To this end, was asked 168 students to the first, second
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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7. Sequential quadratic programming and constraint qualification / Programação quadratica sequencial e condições de qualificação
In the context of constrained optimization problems, we face the optimality conditions and also constraint qualification. Our aim is to study with details several constraint qualification, highlighting the constant positive linear dependence condition, and its influence in Sequential Quadratic Programming algorithms convergence. The relevance of this study i
Publicado em: 2009
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8. Devir-velho: um envelhecer para além dos modelos
This work resulted from a study based on the ideas of the philosophers Seneca and Espinosa permeated by Deleuze. The main objective of the research was to identify and analyze some of the philosophies expressed in these building approaches in order to compose a new perspective on aging and being old. The pursuit of these meetings is justified by the current
Publicado em: 2009
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9. Um estudo observacional da incursão de sistemas frontais no nordeste brasileiro e sua influência na atmosfera do Centro de Lançamento de Alcântara (CLA) / Observacional study of the incursion on frontal systems on northeast Brazil and its influence in the atmosphere of the Alcantara Launching Center (CLA)
In this work, an observational synoptic configuration pattern study was performed over the South America (SA) and in the South Atlantic (SAO) and South Pacific Oceans (SPO), in events of Frontal Systems (FSs) that reached the Brazilian northeast coast and created an intense cloudiness in the region of the Alcântara Launching Center (ALC). Seven cases were s
Publicado em: 2008
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10. The weak patch test for nonhomogeneous materials modeled with graded finite elements
Functionally graded materials have an additional length scale associated to the spatial variation of the material property field which competes with the usual geometrical length scale of the boundary value problem. By considering the length scale of nonhomogeneity, this paper presents the weak patch test (rather than the standard one) of the graded element f
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2007-03
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11. Una cartografía social del género en educación
Understanding how the concept of gender is dealt with in educational systems requires a holistic comprehension of its actors and spaces. Social mapping helps visualize the many grounds and points of convergence and divergence. This paper highlights both the independent natures of private and public spaces, and the interaction between them. The private sphere
Educação & Sociedade. Publicado em: 2006-08
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12. Weak convergence under nonlinearities
Neste artigo, provamos que se um operador de Nemytskii aplica Lp(ômega, E) no Lq(ômega , F), para p, q maiores do que 1, E, F espaços de Banach separáveis e F reflexivo, então uma seqüência que converge fracamente e q.t.p. é transformada em uma seqüência fracamente convergente. Fornecemos um contra-exemplo mostrando que se q = 1 e p é maior do que
Anais da Academia Brasileira de Ciências. Publicado em: 2003-03