BIRD, BCAM's Institutional Repository Data: Recent submissions
Now showing items 120 of 988

Moderately Discontinuous Algebraic Topology for Metric Subanalytic Germs
(20191031)We have developed both a homology theory and a homotopy theory in the context of metric subanalytic germs (see Definition 2.1). The former is called MD homology and is covered in Chapter 2, which contains a paper that is ... 
Hydrodynamic identification of NAUTILUS FOWT platform from small scale tests
(2019)A smallscale tank test campaign of the NAUTILUS offshore wind floating semisubmersible platform was held at the Ifremer Deep Water Basin within the framework of the MaRINET 2 project. The support structure consists in ... 
Mooring system monitoring of offshore renewable energy floating platforms
(2019)An appropriate schedule of the operations for the maintenance (both long and short term) of offshore renewable energy devices can be a crucial key factor for assessing the economic viability of marine energy projects. ... 
Advanced Mathematical Modelling of Pancreatic βCells
(20191210)Insulinsecreting pancreatic $\beta$cells are responsible for maintaining the whole body glucose homeostasis. Dysfunction or loss of $\beta$cell mass results in impaired insulin secretion and, in some cases, diabetes. ... 
Flow with $A_\infty(\mathbb R)$ density and transport equation in $\mathrm{BMO}(\mathbb R)$
(Forum of Mathematics, Sigma, 201911)We show that, if $b\in L^1(0,T;L^1_{\rm {loc}}(\mathbb R))$ has spatial derivative in the JohnNirenberg space ${\rm{BMO}}(\mathbb R)$, then it generates a unique flow $\phi(t,\cdot)$ which has an $A_\infty(\mathbb R)$ ... 
Bilinear CalderónZygmund theory on product spaces
(Journal des Math\'ematiques Pures et Appliqu\'ees, 201910)We develop a wide general theory of bilinear biparameter singular integrals $T$. This includes general Calder\'onZygmund type principles in the bilinear biparameter setting: easier bounds, like estimates in the Banach ... 
Quantitative weighted estimates for Rubio de Francia's LittlewoodPaley square function
(Journal of Geometric Analysis, 201912)We consider the Rubio de Francia's LittlewoodPaley square function associated with an arbitrary family of intervals in $\mathbb{R}$ with finite overlapping. Quantitative weighted estimates are obtained for this operator. ... 
An optimal scaling to computationally tractable dimensionless models: Study of latex particles morphology formation
(Computer Physics Communications, 202002)In modelling of chemical, physical or biological systems it may occur that the coefficients, multiplying various terms in the equation of interest, differ greatly in magnitude, if a particular system of units is used. Such ... 
Some geometric properties of Riemann’s nondifferentiable function
(Comptes Rendus Mathematique, 20191106)Riemann’s nondifferentiable function is a celebrated example of a continuous but almost nowhere differentiable function. There is strong numeric evidence that one of its complex versions represents a geometric trajectory ... 
Computing Multipersistence by Means of Spectral Systems
(Proceedings of the 2019 on International Symposium on Symbolic and Algebraic Computation, 20190708)In their original setting, both spectral sequences and persistent homology are algebraic topology tools defined from filtrations of objects (e.g. topological spaces or simplicial complexes) indexed over the set Z of integer ... 
5axis doubleflank CNC machining of spiral bevel gears via customshaped milling tools  Part I: modeling and simulation
(Precision Engineering, 20191120)A new category of 5axis flank computer numerically controlled (CNC) machining, called \emph{doubleflank}, is presented. Instead of using a predefined set of milling tools, we use the shape of the milling tool as a free ... 
Models for damped water waves
(SIAM Journal of Applied Mathematics, 2019)In this paper we derive some new weakly nonlinear asymptotic models describing viscous waves in deep water with or without surface tension effects. These asymptotic models take into account several different dissipative ... 
Refined Isogeometric Analysis for fluid mechanics and electromagnetism
(Computer Methods in Applied Mechanics and Engineering, 201903)Starting from a highly continuous isogeometric analysis discretization, we introduce hyperplanes that partition the domain into subdomains and reduce the continuity of the discretization spaces at these hyperplanes. As the ... 
Efficient mass and stiffness matrix assembly via weighted Gaussian quadrature rules for Bsplines
(Journal of Computational and Applied Mathematics, 20191214)Calabr{\`o} et al. [10] changed the paradigm of the mass and stiffness computation from the traditional elementwise assembly to a rowwise concept, showing that the latter one offers integration that may be orders of ... 
Hybrid Heuristics for the Linear Ordering Problem
(2019 IEEE Congress on Evolutionary Computation, CEC 2019  Proceedings, 2019)The linear ordering problem (LOP) is one of the classical NPHard combinatorial optimization problems. Motivated by the difficulty of solving it up to optimality, in recent decades a great number of heuristic and metaheuristic ... 
Metamodeling on detailed geography for accurate prediction of invasive alien species dispersal
(Scientific Reports, 20191107)Invasive species are recognized as a significant threat to biodiversity. The mathematical modeling of their spatiotemporal dynamics can provide significant help to environmental managers in devising suitable control ... 
Gaussian processes in complex media: new vistas on anomalous diffusion
(Front. Phys., 201909)Normal or Brownian diffusion is historically identified by the linear growth in time of the variance and by a Gaussian shape of the displacement distribution. Processes departing from the at least one of the above conditions ... 
Studies on knot placement techniques for the geometry construction and the accurate simulation of isogeometric spatial curved beams
(Computer Methods in Applied Mechanics and Engineering, 201911)The present paper investigates the use of different knot placement techniques for isogeometric analysis of spatial curved beams, to enhance analysis results in cases when geometries are given in terms of data points. ... 
Equilibrium and Transport Properties of Quantum ManyBody Systems
(20191030)This thesis is a study of equilibrium and dynamical properties of macroscopic quantum manybody problems. An important part of the manuscript concerns the study of heat and charge transport properties of fermions on the ... 
Front Propagation in Random Media
(2019)This PhD thesis deals with the problem of the propagation of fronts under random circumstances. A statistical model to represent the motion of fronts when are evolving in a media characterized by microscopical randomness ...