• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
https://doi.org/10.11606/D.55.2024.tde-22052024-142742
Document
Author
Full name
Thales Novelli Castro
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2024
Supervisor
Committee
Mencattini, Igor (President)
Maia, Leonardo Paulo
Manfio, Fernando
Oliveira, Cesar Rogerio de
Title in English
Topics on the theory of Frobenius manifolds
Keywords in English
Differential geometry
Frobenius manifolds
Hamiltonian
Poisson structures
Systems of hydrodyamic type
Abstract in English
This work aims to present a connection between Frobenius manifolds, a concept of differential geometry which shows up in topological field theory, and systems of differential equations of hydrodynamic type. Formulated by Dubrovin in the 1990s, Frobenius manifolds aim to give a geometric interpretation to the so-called associativity equations, or WDVV equations, a nonlinear system whose solution is a quasi-homogeneous function describing structure constants of an associative algebra. Hydrodynamic-type systems arise, as the name suggests, in studies on fluid mechanics, especially gas dynamics. From the geometric approach, the relation between these two entities is given by means of a Hamiltonian representation for these equations, arising from a specific type of Poisson structure. Specifically, the work presents an overview of the main geometric aspects of the theory, leading to a theorem according to which the loop-space of a Frobenius manifold carries a so-called bi-Hamiltonian structure of hydrodynamic type.
Title in Portuguese
Tópicos na teoria das variedades de Frobenius
Keywords in Portuguese
Estruturas de Poisson
Geometria diferencial
Hamiltoniano
Sistemas de tipo hidrodinâmico.
Variedades de Frobenius
Abstract in Portuguese
Este trabalho se propõe a apresentar uma conexão entre as variedades de Frobenius, um conceito da geometria diferencial presente na teoria topológica de campos, e sistemas de equações de tipo hidrodinâmico. Formuladas por Dubrovin ma década de 1990, as variedades de Frobenius visam dar uma interpretação geométrica às chamadas equações de associatividade, ou equações WDVV, um sistema não linear cuja solução é uma função quasi-homogênea que descreve constantes de estrutura de uma álgebra associativa. Os sistemas de tipo hidrodinâmico surgem, como o nome sugere, em estudos sobre mecânica de fluidos, especialmente dinâmica de gases. A relação, do ponto de vista geométrico, entre essas duas entidades se dá por meio de uma representação hamiltoniana para essas equações, proveniente de um tipo específico de estrutura de Poisson. Especificamente, o trabalho apresenta uma visão geral dos principais aspectos geométricos da teoria, desencadeando num teorema segundo o qual o loop-space de uma variedade de Frobenius carrega uma chamada estrutura bi-hamiltoniana de tipo hidrodinâmico.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2024-05-22
 
WARNING: Learn what derived works are clicking here.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.