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Doctoral Thesis
DOI
https://doi.org/10.11606/T.55.2014.tde-19112014-094736
Document
Author
Full name
Wanderley Aparecido Cerniauskas
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2014
Supervisor
Committee
Silva, Paulo Leandro Dattori da (President)
Barostichi, Rafael Fernando
Santos, Luís Antônio Carvalho dos
Silva, Maurício Fronza da
Zani, Sergio Luis
Title in Portuguese
Resolubilidade perto do conjunto característico para uma classe de operadores diferenciais parciais de primeira ordem
Keywords in Portuguese
Campos vetoriais complexos
Condição (P)
Resolubilidade semi-global
Abstract in Portuguese
Seja L = ∂ /∂t + (a(x) + ib(x))∂/∂x, b ≢ 0, um campo vetorial complexo definido em A = (-∊ , ∊) × S1, ∊ > 0, sendo a, b ∈ C((-∊ , ∊);ℝ) e (x, t) ∈ (-∊ ∊) × S1. Assuma que b-1(0) = {0}. Este trabalho trata da resolubilidade perto do conjunto característico {0} × S1; da equação Lu = pu + f, p, f ∈ C (A). A relação entre as ordens de anulamento das funções a e b em x = 0 e certas médias da função p tem influência na resolubilidade.
Title in English
Solvability near the characteristic set for a clas of partial differential operators of the first order
Keywords in English
Complex vector fields
Condition (P)
Semi-global solvability
Abstract in English
Let L = ∂ /∂t + (a(x) + ib(x))∂/∂x, b ≢ 0, be a complex vector field defined in A = (-∊ , ∊) × S1, ∊ > 0, where a, b ∈ C((-∊ , ∊);ℝ) and (x, t) ∈ (-∊ ∊) × S1. Assume that b-1(0) = {0}. This work deals with the volvability near the characteristic set {0} × S1; of equation. Lu = pu + f, p, f ∈ C (A). The interplay between the orders of vanishing of the functions a and b at x = 0 and certain averages of the function p has influence in the solvability.
 
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Publishing Date
2014-11-19
 
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