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Master's Dissertation
DOI
https://doi.org/10.11606/D.45.2020.tde-06082020-141230
Document
Author
Full name
Gustavo de Paula Ramos
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2020
Supervisor
Committee
Piccione, Paolo (President)
Alves, Claudianor Oliveira
Grama, Lino Anderson da Silva
Title in English
A generic multiplicity result for a Yamabe-type equation via Morse theory
Keywords in English
Critical point theory
Morse theory
Nondegenerate critical points
Scalar curvature
Yamabe problem
Abstract in English
Let M^n be a closed manifold with n>=3 and (N, h) be a Riemannian manifold with positive constant scalar curvature. We prove that a PDE similar to the Yamabe equation on the Riemannian product (MxN,g+h\epsilon^2) depending only on conformal factors u\colon M \to \mathbb has at least P_1(M) positive solutions with small energy for generic (\epsilon,g), where \epsilon>0 is sufficiently small and g is a Riemannian metric of class C^k on M, 2<=k<\infty. This result is obtained by adapting techniques employed by Micheletti & Pistoia (2009), Ghimenti & Micheletti (2011) and Jimmy Petean (2016).
Title in Portuguese
Um resultado genérico de multiplicidade para uma equação tipo Yamabe através de teoria de Morse
Keywords in Portuguese
Curvatura escalar
Pontos críticos não-degenerados
Problema de Yamabe
Teoria de Morse
Teoria dos pontos críticos
Abstract in Portuguese
Seja M^n uma variedade fechada com n>=3 e (N, h) uma variedade Riemanniana com curvatura escalar constante positiva. Provamos que uma equação similar àquela de Yamabe no produto Riemanniano (MxN, g +h\epsilon^2) dependendo apenas de fatores conformes u:M\to\mathbb tem pelo menos P_1(M) soluções positivas de pequena energia para (\epsilon, g) genérico, onde \epsilon>0 é pequeno o suficiente e g é uma métrica Riemanniana de classe C^k em M, 2 <= k <= \infty. Esse resultado é obtido através da adaptação de técnicas empregadas por Micheletti e Pistoia (2009), Ghimenti e Micheletti (2011) e Jimmy Petean (2016).
 
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Publishing Date
2021-01-20
 
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