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Doctoral Thesis
DOI
https://doi.org/10.11606/T.55.2024.tde-04062024-144344
Document
Author
Full name
Murilo do Nascimento Luiz
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2024
Supervisor
Committee
Mencattini, Igor (President)
Ferreira Netto, Clarice de Souza
Rios, Pedro Paulo de Magalhães
Ruffino, Fabio Ferrari
Title in English
Poisson quasi-Nijenhuis manifolds and Dirac structures: A geometrical approach to deformation and involutive theorems
Keywords in English
Courant algebroids
Dirac structures
Poisson quasi-Nijenhuis manifolds
Quasi-Lie bialgebroids
Twists of quasi-Lie bialgebroids
Abstract in English
In this work, we analyze the connection between Poisson quasi-Nijenhuis structures, quasi-Lie bialgebroids, and Courant algebroids. We demonstrate how to deform a Poisson quasi-Nijenhuis manifold using a closed 2-form within the context of Courant algebroids and Dirac structures. Then, we interpret this procedure in the context of supermanifolds, as a specific instance of the so-called twisting of a proto-bialgebroid. Finally, we investigate the applications of Poisson quasi-Nijenhuis manifolds in the theory of integrable systems. The main results of this thesis are reported in (LUIZ; MENCATTINI; PEDRONI, 2024).
Title in Portuguese
Variedades de Poisson quasi-Nijenhuis e estruturas de Dirac: uma abordagem geométrica para os teoremas de deformação e involução
Keywords in Portuguese
Estuturas de Dirac
Quasi-Lie bialgebroides
Twisting de um quase-Lie bialgebroid
Variedade de Poisson quasi-Nijenhuis
Abstract in Portuguese
Neste trabalho, analisamos a conexão entre estruturas de Poisson quase-Nijenhuis, quase-Lie bialgebróides e algebróides de Courant. Demonstramos como deformar uma variedade de Poisson quase-Nijenhuis usando uma 2-forma fechada dentro do contexto dos algebróides de Courant e estruturas de Dirac. Depois, interpretamos este procedimento no contexto de super variedades, como uma instância específica do chamado twisting de um proto-bialgebróide. Por fim, investigamos as aplicações de variedades de Poisson quasi-Nijenhuis dentro da teoria de sistemas integráveis. Os principais resultados desta tese estão relatados em (LUIZ; MENCATTINI; PEDRONI, 2024).
 
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Publishing Date
2024-06-04
 
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