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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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1

[en] NUMERICAL ANALYSIS OF AMBROSETTI-PRODI TYPE OPERATORS / [pt] ANÁLISE NUMÉRICA DE OPERADORES DO TIPO AMBROSETTI-PRODI

JOSE TEIXEIRA CAL NETO 14 May 2019 (has links)
[pt] Berger e Podolak apresentaram uma interpretação geométrica do resultado seminal de Ambrosetti e Prodi sobre o comportamento das soluções de certas equações diferenciais parciais elípticas semi-lineares. Consideram-se extensões deste ponto de vista, a partir das quais se desenvolve um algoritmo numérico para resolver as equações. / [en] Berger and Podolak obtained a geometric interpretation of the seminal result of Ambrosetti and Prodi regarding the behavior of solutions of certain semilinear elliptic partial differential equations. We consider extensions of such interpretation to develop a stable numerical algorithm that solves the equations.
[pt] ANALISE NUMERICA
[en] NUMERICAL ANALYSIS
[pt] ANALISE FUNCIONAL NAO LINEAR
[en] NONLINEAR FUNCTIONAL ANALYSIS
[pt] EDP S ELIPTICAS SEMI LINEARES
[en] SEMILINEAR ELLIPTIC PDE S
2

[pt] DESIGUALDADE DE HARNACK E ESTIMATIVAS DE HOLDER PARA EQUAÇÕES ELÍPTICAS DE SEGUNDA ORDEM / [en] HARNACK S INEQUALITY AND HOLDER ESTIMATES FOR SECOND ORDER ELLIPTICAL EQUATIONS

09 August 2021 (has links)
[pt] O objetivo principal desta dissertação é estudar a desigualdade de Harnack e as estimativas de Holder, para um operador elíptico de segunda ordem, na forma não divergente e na forma divergente, respectivamente, sendo os coeficientes funções mensuráveis e limitadas em um domínio ômega contido em Rn. / [en] The main objective of this dissertation is to study Harnack s inequality and Holder s estimates for a second-order elliptic operator, written in the non-divergent form and in the divergent form, respectively, where the coefficient functions are measurable and bounded functions in a domain omega contained in Rn.
[pt] EQUACOES DIFERENCIAIS PARCIAIS
[pt] EQUACOES ELIPTICAS
[pt] ESTIMATIVAS DE HOLDER
[pt] DESIGUALDADE DE HARNACK
[pt] EDP
[en] PARTIAL DIFFERENTIAL EQUATION
[en] ELLIPTICAL EQUATION
[en] HOLDER ESTIMATE
[en] HARNACK S INEQUALITY
[en] PDE

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