Browsing MAT_Articles by Title
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Gauss-Bonnet formulae and rotational integrals in constant curvature spaces
Elsevier (2017-02)We obtain generalizations of the main result in [10], and then provide geometric interpretations of linear combinations of the mean curvature integrals that appear in the Gauss–Bonnet formula for hypersurfaces in space ... -
Generalisation of splitting methods based on modified potentials to nonlinear evolution equations of parabolic and Schrödinger type
Elsevier (2023-11-10)The present work is concerned with the extension of modified potential operator splitting methods to specific classes of nonlinear evolution equations. The considered partial differential equations of Schrödinger and ... -
Generalized extrapolation methods based on compositions of a basic 2nd-order scheme
Elsevier Inc. (2024-07-15)We propose new linear combinations of compositions of a basic second-order scheme with appropriately chosen coefficients to construct higher order numerical integrators for differential equations. They can be considered ... -
Generalized functional additive mixed models with (functional) compositional covariates for areal Covid-19 incidence curves
Royal Statistical Society (2024-03-19)We extend the generalized functional additive mixed model to include compositional and functional compositional (density) covariates carrying relative information of a whole. Relying on the isometric isomorphism of the ... -
Generalized Linear Models for Geometrical Current predictors. An application to predict garment fit
SAGE Publications (2019)The aim of this paper is to model an ordinal response variable in terms of vector-valued functional data included on a vector-valued RKHS. In particular, we focus on the vector-valued RKHS obtained when a geometrical ... -
Generalized partially linear models on Riemannian manifolds
Royal Statistical Society (2020-05-03)We introduce generalized partially linear models with covariates on Riemannian manifolds. These models, like ordinary generalized linear models, are a generalization of partially linear models on Riemannian manifolds that ... -
Generating harmonic surfaces for interactive design
Elsevier (2014-06)A method is given for generating harmonic tensor product Bézier surfaces and the explicit expression of each point in the control net is provided as a linear combination of prescribed boundary control points. The matrix ... -
Generating sequences and Poincaré series for a finite set of plane divisorial valuations
Elsevier (2008)Let V be a finite set of divisorial valuations centered at a 2- dimensional regular local ring R. In this paper we study its structure by means of the semigroup of values, SV , and the multi-index graded algebra defined ... -
Genetic determinants of freckle occurrence in the Spanish population: Towards ephelides prediction from human DNA samples
Elsevier (2018-03)Prediction of human pigmentation traits, one of the most differentiable externally visible characteristics among individuals, from biological samples represents a useful tool in the field of forensic DNA phenotyping. ... -
Geofd: An R Package for Function-Valued Geostatistical Prediction
Universidad Nacional de Colombia (2015-12)Spatially correlated curves are present in a wide range of applied disciplines. In this paper we describe the R package geofd which implements ordinary kriging prediction for this type of data. Initially the curves ... -
Geometric analysis of Lorentzian distance function on spacelike hypersurfaces
American Mathematical Society (2010)Abstract. Some analysis on the Lorentzian distance in a spacetime with controlled sectional (or Ricci) curvatures is done. In particular, we focus on the study of the restriction of such distance to a spacelike hypersurface ... -
Geometric Hermite interpolation by rational curves of constant width
Elsevier (2023-09-28)A constructive characterization of the support function for a rationally parameterized curve of constant width is given. In addition, a Hermite interpolation problem for such kind of curves is solved, which yields a method ... -
Geometric integral formulas of cylinders within slabs
Elsevier (2023-10-17)We present new expressions for the integrals of mean curvature of domains in by means of sections with cylinders. Then, we combine these expressions with the corresponding version of the invariant density of affine ... -
Geometrical definition of a continuous family of time transformations generalizing and including the classic anomalies of the elliptic two-body problem
Elsevier (2016)This paper is aimed to address the study of techniques focused on the use of a family of anomalies based on a family of geometric transformations that includes the true anomaly f, the eccentric anomaly g and the secondary ... -
Geometrical definition of a continuous family of time transformations on the hyperbolic two-body problem
Elsevier (2018-03)This paper is aimed to address the study of techniques focused on the use of a new set of anomalies based on geometric continuous transformations, depending on a parameter , that includes the true anomaly. This family ... -
Geospatial Analysis of Extreme Weather Events in Nigeria (1985–2015) Using Self-Organizing Maps
(2017)The explosion of data in the information age has provided an opportunity to explore the possibility of characterizing the climate patterns using data mining techniques. Nigeria has a unique tropical climate with two ... -
Geostatistical mixed beta regression: a Bayesian approach
Springer Verlag (2017)This paper develops regression techniques for geostatistical data, with an emphasis in proportions mea- sured on a continuous scale. Specifically, it deals with Beta regression models with mixed effects to control the ... -
Graphical modelling and partial characteristics for multitype and multivariate-marked spatio-temporal point processes
Elsevier (2021-04)A method for dealing with multivariate analysis of marked spatio-temporal point processes is presented by introducing different partial point characteristics, and by extending the spatial dependence graph model formalism. ... -
Green functions and the Dirichlet spectrum
European Mathematical Society (2020)This article has results of four types. We show that the firsteigenvalueλ1(Ω) of the weighted Laplacian of a bounded domain withsmooth boundary can be obtained by S. Sato’s iteration scheme of theGreen ... -
Gromov–Hausdorff convergence of non-Archimedean fuzzy metric spaces
Elsevier (2015)We introduce the notion of the Gromov–Hausdorff fuzzy distance between two non-Archimedean fuzzy metric spaces (in the sense of Kramosil and Michalek). Basic properties involving convergence and the fuzzy version of the ...