Asymptotically Linear
Mostrando 1-12 de 23 artigos, teses e dissertações.
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1. Estudo de uma classe de equações elípticas via métodos variacionais e topológicos / Study of a class of elliptic equations via variational and topological methods
Alguns problemas elípticos assintoticamente lineares são considerados e é provada a existência de solução. Os principais resultados são estabelecidos de dois modos distintos e as provas são baseadas em resultados clássicos da teoria de pontos críticos, a saber: minimização, princípio variacional de Ekeland, grau topológico, teorema do ponto de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/04/2012
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2. Problemas Elípticos Assintoticamente Lineares / An Asymptotically Linear Elliptic Problem
Nesta dissertação analisamos questões de existência e multiplicidade de soluções do problema de Dirichlet elíptico assintoticamente linear. Para obtermos os nossos principais resultados utilizamos métodos variacionais, tais como o Teorema do Passo da Montanha um Teorema de Linking. Além disso, utilizamos a redução de Liapunov-Schmidt.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/02/2012
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3. Problemas Elípticos Assintoticamente Lineares / An Asymptotically Linear Elliptic Problem
Nesta dissertação analisamos questões de existência e multiplicidade de soluções do problema de Dirichlet elíptico assintoticamente linear. Para obtermos os nossos principais resultados utilizamos métodos variacionais, tais como o Teorema do Passo da Montanha um Teorema de Linking. Além disso, utilizamos a redução de Liapunov-Schmidt.
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/02/2012
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4. Transições de fase hádron-quark em estrelas de nêutrons
Recent advances on the field of high energy physics have enabled the study of matter under extreme conditions and, in this context, new states of matter are being discovered and speculated upon. Among these hypothetical states of matter is the one of deconfined quarks in high densities and/or temperatures. An environment with extreme densities and low temper
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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5. Funções s-assintoticamente periódicas em espaços de Banach e aplicações à equações diferenciais funcionais / S-asymptotically periodic functions on Banach spaces and applications for functional differential equations
This work is devoted to the study of the class of continuous and bounded functions f : [0 INFINIT) ARROWX for which there exists omega>0 such that limt IND.t ARROWINFINIT(f(t + omega!) - f(t)) = 0 (in the sequel called S-asymptotically !-periodic functions). We discuss qualitative properties and establish some relationships between this type of functions and
Publicado em: 2009
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6. Estabilidade e controle com criterio de custo medio a longo prazo em sistemas lineares estocasticos / Stability and control of linear stochastic systems with long-run average cost criterion
This monograph presents results on stability and control of stochastic systems represented by linear operators with respect to the state which are non-linear with respect to the control. The control seeks to optimize a long run average cost (LRAC). The control structure does not depend on the past history of the process and it can be used, in particular, to
Publicado em: 2009
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7. Existencia e multiplicidade de soluções para a Equação de Schrodinger não-linear em Rn / Existence and multiplicity of solutions for the non-linear Schrodinger Equation in Rn
In this dissertation we get resulted of multiplicity of not trivial weak solutions for the problem -Du + V (x)u = f (x; u); x 2 RN; where V is continuous, f is C1, with f (x; 0) = 0 and f is asymptotically linear. We use variationals methods and the theory of critical groups, to get and to distinguish the solutions. We also present results of existence of no
Publicado em: 2007
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8. Robust pole placement and stability analysis of interval systems with data dependencies / Alocação de polos e estabilidade robustas de sistemas intervalares com tratamento de multiincidencias de parametros
This Dissertation is focused on control system design and stability analysis of linear timeinvariant uncertain plants, with uncertainties of interval nature. The control system design problem is treated in the context of the pole placement technique. An extension of the classical technique to robust pole placement based on Interval Analysis is proposed. The
Publicado em: 2006
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9. CONTROL PROBLEM SOLUTIONS BY FREQUENCY DEPENDENT BMIS AND LMIS / SOLUÇÃO DE PROBLEMAS DE CONTROLE VIA BMIS E LMIS DEPENDENTES DA FREQÜÊNCIA
In this thesis, it is proposed and analysed in terms of the global-convergence property a new algorithm for solving quadratic optimisation problems under either a BMI (bilinear matrix inequality) or a frequency-dependent LMI (linear matrix inequality) constraints. These problems are of special interest in the control literature a some very important control
Publicado em: 2000
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10. Locally asymptotically rank-based procedures for testing autoregressive moving average dependence
The problem of testing a given autoregressive moving average (ARMA) model (in which the density of the generating white noise is unspecified) against other ARMA models is considered. A distribution-free asymptotically most powerful test, based on a generalized linear serial rank statistic, is provided against contiguous ARMA alternatives with specified coeff
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11. Risk-efficient estimation of the mean exponential survival time under random censoring.
The paper proposes a sequential estimator theta of the parameter theta of an exponential distribution when the data are censored. It is shown that theta is asymptotically risk efficient when the loss is measured by the squared error of estimation of theta plus a linear function of the number of observations and that theta is asymptotically normal as the cost
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12. Generalizing Fisher's "reproductive value": linear differential and difference equations of "dilute" biological systems.
R. A. Fisher's 1930 "reproductive value" is defined as the contribution made by a population's initial age elements to its asymptotically dominating exponential growth mode. For the Leslie discrete-time model, it is the characteristic row vector of the Leslie matrix, and for the integral-equation model of Lotka the similar eigenfunction. It generalizes neatl