Planas Bahí, Arnau (Date of defense: 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 ...
Massana Hugas, Immaculada (Date of defense: 2006-10-31)
Després d'un capítol d'introducció (capítol 2) on es definieixen i s'expliquen les característiques i els fenòmens més importants dels sistemes dinàmics, aquest treball el podríem dividir bàsicament en ...
Ribera Ponsa, Helena (Date of defense: 2018-03-16)
In this thesis we study diffusion processes of nanoparticle evolution and develop appropriate models with the aim of being able to optimise their functions according to the needs of industry. Two distinct ...
Domènech i Blàzquez, Margarita (Date of defense: 2020-11-24)
The first part of this thesis focuses on cooperative games and specifically on the study of semivalues and probabilistic values. Each semivalue, as a solution concept defined on cooperative games with ...
Costa Miranda, Núria (Date of defense: 2021-04-14)
This PhD thesis focuses on lattice-based cryptography and how to apply it to build post-quantum online voting systems. It is the result of the research done by the author at Scytl in close collaboration ...
Escala Ribas, Alex (Date of defense: 2017-07-21)
Electronic voting presents many challenges due to its multiple security requirements. Some of the challenges are related to guaranteeing voters' privacy and system's transparency, which are hard to ...
Vegué, Marina (Date of defense: 2018-03-23)
Structure is fundamental in shaping the types of computations that neuronal circuits can perform. Explaining the laws that determine the connectivity properties of brain networks and their implications ...
Kiesenhofer, Anna (Date of defense: 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 (Date of defense: 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 ...
Mosaffa, Payman (Date of defense: 2017-11-11)
This thesis presents a hybrid vertex/cell-centred approach to mechanically simulate planar cellular monolayers undergoing cell reorganisation. Cell centres are represented by a triangular nodal network, ...