Now showing items 1-20 of 988

    • Moderately Discontinuous Algebraic Topology for Metric Subanalytic Germs 

      Heinze S. (2019-10-31)
      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 

      Galván J.; Sánchez-Lara M.; Garrido-Mendoza C.; Pérez-Morán G.; Boulluec M.L.; Augier B.; Rodriguez-Arias R.; Nava V. (2019)
      A small-scale tank test campaign of the NAUTILUS offshore wind floating semisub-mersible 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 

      Touzon I.; Garcia-Corcuera A.; Nava V.; Rodriguez-Arias R.; de Miguel B. (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 β-Cells 

      Marinelli I. (2019-12-10)
      Insulin-secreting 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 $\mathrm{BMO}(\mathbb R)$ 

      Jiang R.; Li K.; Xiao J. (Forum of Mathematics, Sigma, 2019-11)
      We show that, if $b\in L^1(0,T;L^1_{\rm {loc}}(\mathbb R))$ has spatial derivative in the John-Nirenberg space ${\rm{BMO}}(\mathbb R)$, then it generates a unique flow $\phi(t,\cdot)$ which has an $A_\infty(\mathbb R)$ ...
    • Bilinear Calderón--Zygmund theory on product spaces 

      Li K.; Martikainen H.; Vuorinen E. (Journal des Math\'ematiques Pures et Appliqu\'ees, 2019-10)
      We develop a wide general theory of bilinear bi-parameter singular integrals $T$. This includes general Calder\'on--Zygmund type principles in the bilinear bi-parameter setting: easier bounds, like estimates in the Banach ...
    • Quantitative weighted estimates for Rubio de Francia's Littlewood--Paley square function 

      Garg R.; Roncal L.; Shrivastava S. (Journal of Geometric Analysis, 2019-12)
      We consider the Rubio de Francia's Littlewood--Paley 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 

      Rusconi S.; Dutykh D.; Zarnescu A.; Sokolovski D.; Akhmatskaya E. (Computer Physics Communications, 2020-02)
      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 non-differentiable function 

      Eceizabarrena D. (Comptes Rendus Mathematique, 2019-11-06)
      Riemann’s non-differentiable 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 

      Guidolin A.; Divasón J.; Romero A.; Vaccarino F. (Proceedings of the 2019 on International Symposium on Symbolic and Algebraic Computation, 2019-07-08)
      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 ...
    • 5-axis double-flank CNC machining of spiral bevel gears via custom-shaped milling tools -- Part I: modeling and simulation 

      Bo P.; Gonzalez H.; Calleja A.; Lopez de Lacalle N.; Bartoň M. (Precision Engineering, 2019-11-20)
      A new category of 5-axis flank computer numerically controlled (CNC) machining, called \emph{double-flank}, 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 

      Granero-Belinchon R.; Scrobogna S. (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 

      Garcia D.; Pardo D.; Calo V. M. (Computer Methods in Applied Mechanics and Engineering, 2019-03)
      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 B-splines 

      Bartoň M.; Puzyrev V.; Deng Q.; Calo V. (Journal of Computational and Applied Mathematics, 2019-12-14)
      Calabr{\`o} et al. [10] changed the paradigm of the mass and stiffness computation from the traditional element-wise assembly to a row-wise concept, showing that the latter one offers integration that may be orders of ...
    • Hybrid Heuristics for the Linear Ordering Problem 

      Garcia E.; Ceberio J.; Lozano J.A. (2019 IEEE Congress on Evolutionary Computation, CEC 2019 - Proceedings, 2019)
      The linear ordering problem (LOP) is one of the classical NP-Hard combinatorial optimization problems. Motivated by the difficulty of solving it up to optimality, in recent decades a great number of heuristic and meta-heuristic ...
    • Meta-modeling on detailed geography for accurate prediction of invasive alien species dispersal 

      Pepper N.; Gerardo-Giorda L.; Montomoli F. (Scientific Reports, 2019-11-07)
      Invasive species are recognized as a significant threat to biodiversity. The mathematical modeling of their spatio-temporal dynamics can provide significant help to environmental managers in devising suitable control ...
    • Gaussian processes in complex media: new vistas on anomalous diffusion 

      Di Tullio F.; Paradisi P.; Spigler R.; Pagnini G. (Front. Phys., 2019-09)
      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 

      Hosseini S.F.; Hashemian A.; Reali A. (Computer Methods in Applied Mechanics and Engineering, 2019-11)
      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 Many-Body Systems 

      Ratsimanetrimanana A. (2019-10-30)
      This thesis is a study of equilibrium and dynamical properties of macroscopic quantum many-body 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 

      Trucchia A. (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 ...