Mostrando ítems 1-10 de 19
Planas Bahí, Arnau (Fecha de defensa: 2020-09-30)
This thesis explores classification and perturbation problems for group actions on a class of Poisson manifolds called $b^m$-Poisson manifolds. $b^m$-Poisson manifolds are manifolds which are symplectic ...
Kiesenhofer, Anna (Fecha de defensa: 2016-12-21)
The study of b-symplectic manifolds was initiated in 2012 by the works of Victor Guillemin, Eva Miranda and Ana Rita Pires (Adv. Math. 264 (2014), 864¿896). These manifolds, which can be understood as ...
Cardona Aguilar, Robert (Fecha de defensa: 2021-05-26)
In this thesis, we make a deep investigation of the geometry and dynamics of several objects (singular or not) appearing in nature. The main goal is to study rigidity versus flexibility dynamical behavior ...
Oms, Cédric (Fecha de defensa: 2020-10-02)
In this thesis, we study the Reeb and Hamiltonian dynamics on singular symplectic and contact manifolds. Those structures are motivated by singularities coming from classical mechanics and fluid ...
Braddell, Róisín (Fecha de defensa: 2021-02-17)
In this thesis, we study the application of symplectic geometry, regular and singular, to symplectic dynamical systems.We start with a motivating case: the relation between symplectic foliations and ...
Dachs Cadefau, Ferran (Fecha de defensa: 2016-06-13)
The aim of this memoir is to study multiplier ideals in two-dimensional local rings having at worst rational singularities. We also want to extend this study to the case of mixed multiplier ideals. The ...
Vrioni, Brikena (Fecha de defensa: 2021-10-29)
An algebraic variety defined over a field is said to have Diophantine stability for an extension of this field if the variety does not acquire new points in the extension. Diophantine stability has a ...
Garrote López, Marina (Fecha de defensa: 2021-07-22)
Phylogenetics is the study of the evolutionary history and relationships among groups of biological entities (called taxa). The modeling of those evolutionary processes is done by phylogenetic trees ...
Cano Vila, María del Pilar (Fecha de defensa: 2020-06-25)
This thesis studies different generalizations of Delaunay triangulations, both from a combinatorial and algorithmic point of view. The Delaunay triangulation of a point set S, denoted DT(S), has vertex ...
Rivero Salgado, Óscar (Fecha de defensa: 2021-02-12)
The main objective of this dissertation is the exploration of certain arithmetic applications of the Euler systems of Beilinson--Flach elements and diagonal cycles. Euler systems have been proved to be ...