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Universitat Politècnica de Catalunya
Listando Programa de Doctorat en Matemàtica Aplicada por título
Mostrando ítems 1-20 de 200
(1, ≤ ℓ)-identifying codes in digraphs and graphs
The main subject of this PhD thesis is the study of (1,=l)-identifying codes in digraphs. The results presented in this work are divided into three parts. The first one focusses on the structural properties of digraphs ...
A census for curves and surfaces with diophantine stability over finite fields
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 growing interest due ...
A contribution to group decision aiding by means of multi-perceptual unbalanced linguistic assessments
(English) In decision-aiding environments under uncertainty, assessments are often expressed in linguistic terms whose meanings can vary significantly between individuals. In this thesis, this variation is modeled through ...
A contribution to the theory of convolutional codes from systems theory piont of view
Information is such a valuable good of our time. Given that the transmission of information has always been subject to precision problems, knowing the obstacles existing between the transmitter and the receiver, eventual ...
A cotangent bundle Hamiltonian tube theorem and its applications in reduction theory
The Marle-Guillemin-Sternberg (MGS) model is an extremely important tool for the theory of Hamiltonian actions on symplectic manifolds. It has been extensively used to prove many local results both in symplectic geometry ...
A geometric study of abnormality in optimal control problems for control and mechanical control systems
Durant els darrers quaranta anys la geometria diferencial ha estat una eina fonamental per entendre la teoria de control òptim. Habitualment la millor estratègia per resoldre un problema és transformar-lo en un altre ...
A hesitant fuzzy perceptual-based approach to model linguistic assessments
Multiple-criteria or multiple-attribute group decision-making is a sub-field of operations research that seek to find a common and representative solution given the preferences elicited by a pre-defined group, over a set ...
A network approach for strapdown inertial kinematic gravimetry
Compared to the conventional ground measurement of gravity, airborne gravimetry is more efficient and cost-effective. Especially, the combination of GPS and INS is known to show very good performances recovering the gravity ...
A numerical formulation to solve the ALE Navier-Stokes equations applied to the withdrawal of magma chambers
La tesis presenta un algoritmo para la resolución de las ecuaciones de Navier-Stokes con acoplamiento mecánico en el contexto del método de los elementos finitos. La solución de la versión ALE de las ecuaciones de Navier-Stokes ...
A study on structure recovery and the broadcasting problem
The thesis contains a study of two problems of combinatorial statistics. The first one is structure learning for partial correlation graphs and the second one is the broadcasting problem on certain families of random ...
A theoretical and computational study of the active self-organization of nematic patterns in thin cytoskeletal layers and their effect on curvature
(English)The structure and dynamics of important biological systems, ranging from cytoskeletal gels to tissues, are controlled by an interplay between activity, dissipation, nematic order, density, and geometry. In particular, ...
A theoretical and computational study of the interaction between biomembranes and curved proteins
Organelles are the smallest functional parts of eukaryotic cells. Among them, some are membrane-bound such as the nucleus, the endoplasmic reticulum, or the Golgi apparatus, each of them with essential biological functions. ...
Active superelasticity in three-dimensional epithelia of controlled shape
Fundamental processes in development and physiology are determined by the three-dimensional architecture of epithelial sheets. How these sheets deform and fold into complex structures has remained unclear, however, because ...
Additive structures and randomness in combinatorics
Arithmetic Combinatorics, Combinatorial Number Theory, Structural Additive Theory and Additive Number Theory are just some of the terms used to describe the vast field that sits at the intersection of Number Theory and ...
Advanced cryptographic techniques for building verifiable and transparent electronic voting protocols
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 satisfy simultaneously. ...
Advancing solver performance in large-scale computational fluid dynamics: generalizing the linelet preconditioner for the pressure correction equation
(English) This thesis presents the Global Linelet Preconditioner (GLP), a preconditioning strategy designed to overcome these limitations and improve scalability in extreme-scale Computational Fluid Dynamics (CFD) applications. ...
Algebraic and algorithmic aspects of Zm × Fn : fixed subgroups and quantification of inertia
This work is based on the family of groups Z^m x F_n, namely free-abelian times free groups, direct products of finitely many copies of Z and a finitely generated free group F_n. These are a special type of right-angled ...
Algebraic and semi-algebraic phylogenetic reconstruction
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 whose nodes represent ...
Algebraic tools in phylogenomics.
En aquesta tesi interdisciplinar desenvolupem eines algebraiques per a problemes en filogenètica i genòmica. Per estudiar l'evolució molecular de les espècies sovint s'usen models evolutius estocàstics. L'evolució es ...
Algorithms and Methods for Robust Geodetic kinematic Positioning
El sistema NAVSTAR/GPS ha desenvolupat un paper molt important en les tècniques de posicionament cinemàtic geodèsiques, especialment en la determinació de la trajectòries per a la orientació de sensors aerotransportats ...
