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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.
1

Resolubilidade local de equações semilineares no plano / Local solvability of semilinear equations in the plane

Yamaoka, Luís Cláudio 29 September 2006 (has links)
Seja Ω ⊂ ℝ2 aberto contendo a origem. Denotando as variáveis por (x,t), provamos a resolubilidade local, em um disco D aberto centrado na origem, D ⊂ Ω, de equações semilineares da forma Pu = f(x,t,u); onde P = ∂t + a(x,t)∂x, a ∈ C2 (Ω), Im ≠ 0 e f ∈ C2 (Ω × ℂ), usando o princípio da contração; P = ∂t - itk∂x, k: número inteiro positivo par e f ∈ C∞(ℝ2 × ℂ), usando o teorema da resolubilidade local de Hounie e Santiago. / Let Ω be an open set of ℝ2 containing the origin. Using the variables (x,t), we prove the local solvability, on an open ball D centered at the origin, D ⊂ Ω, of semilinear equations of the form Pu = f(x,t,u); where P = ∂t + a(x,t)∂x, a ∈ C2 (Ω), Im ≠ 0 and f ∈ C2 (Ω × ℂ), using the principle of contracting mappings; P = ∂t - itk∂x, k: even positive integer number and f ∈ C∞(ℝ2 × ℂ), using the local solvability theorem of Hounie and Santiago.
2

Resolubilidade local de equações semilineares no plano / Local solvability of semilinear equations in the plane

Luís Cláudio Yamaoka 29 September 2006 (has links)
Seja Ω ⊂ ℝ2 aberto contendo a origem. Denotando as variáveis por (x,t), provamos a resolubilidade local, em um disco D aberto centrado na origem, D ⊂ Ω, de equações semilineares da forma Pu = f(x,t,u); onde P = ∂t + a(x,t)∂x, a ∈ C2 (Ω), Im ≠ 0 e f ∈ C2 (Ω × ℂ), usando o princípio da contração; P = ∂t - itk∂x, k: número inteiro positivo par e f ∈ C∞(ℝ2 × ℂ), usando o teorema da resolubilidade local de Hounie e Santiago. / Let Ω be an open set of ℝ2 containing the origin. Using the variables (x,t), we prove the local solvability, on an open ball D centered at the origin, D ⊂ Ω, of semilinear equations of the form Pu = f(x,t,u); where P = ∂t + a(x,t)∂x, a ∈ C2 (Ω), Im ≠ 0 and f ∈ C2 (Ω × ℂ), using the principle of contracting mappings; P = ∂t - itk∂x, k: even positive integer number and f ∈ C∞(ℝ2 × ℂ), using the local solvability theorem of Hounie and Santiago.

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