Search
Now showing items 31-40 of 47
Pseudospectral Methods for the Fractional Laplacian on R
(2020-07-02)
In this thesis, first, we propose a novel pseudospectral method to approximate accurately and efficiently the fractional Laplacian without using truncation. More precisely, given a bounded regular function defined over R, ...
Measure-valued weak solutions for some kinetic equations with singular kernels for quantum particles.
(2018-12-19)
In this thesis, we present a mathematical study of three problems arising in the kinetic theory of quantumgases.In the first part, we consider a Boltzmann type equation that is used to describe the evolution of theparticle ...
Navier-Stokes Equations with Navier Boundary Condition
(2018-10-25)
En esta tesis se estudian diversos problemas relacionados con las ecuaciones de Stokes y Navier Stokes en dominios acotados y con condiciones de contorno de Navier.Por una parte se han obtenido resultados de existencia de ...
Quantitative weighted estimates for singular integrals and commutators
(2018-02-27)
En esta tesis se obtienen diversas estimaciones con pesos cuantitativas para integrales singulares,conmutadores de dichas integrales singulares y ciertas extensiones vectoriales. En particular se obtendrándesigualdades de ...
Structural properties of hierarchically hyperbolic groups
(2020-11-12)
Los temas de esta tesis se enmarcan en el área de la teoría geométrica de grupos, que es el estudio de grupos finitamente generados a través de la exploración de sus aspectos geométricos y topológicos. Más precisamente, ...
Visibility recovery on images acquired in attenuating media. Application to underwater, fog, and mammographic imaging
(2015-12-17)
When acquired in attenuating media, digital images of ten suffer from a particularly complex degradation that reduces their visual quality, hindering their suitability for further computational applications, or simply ...
Contributions to Time Series Classification: Meta-Learning and Explainability
(2022-01-14)
La presente tesis incluye 3 contribuciones de diferentes tipos al área de la clasificación supervisada de series temporales, un campo en auge por la cantidad de series temporales recolectadas día a día en una gran variedad ...
Deep Learning for Inverting Borehole Resistivity Measurements.
(2022-11-25)
El subsuelo terrestre está formado por diferentes materiales, principalmente por rocas porosas que posiblemente contienen minerales y están rellenas de agua salada y/o hidrocarburos. Por lo general, las formaciones que ...
Subgroups of direct products of limit groups over coherent right-angled Artin groups
(2022-07-08)
During the last 40 years, a large body of work has been directed to study the connection betweenfiniteness properties of groups and their algebraic and algorithmic properties. One of the early results isdue to Baumslag and ...
Damage identification in bridges combining deep learning and computational mechanic
(2022-12-02)
[EN]Civil infrastructures, such as bridges, are critical assets for society and the economy. Many of them have already reached their expected life and withstand loadings that exceed the design specifications. Besides, ...