Visualitzant MAT_Articles per títol
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Factors determining waste generation in Spanish towns and cities
Springer Verlag (2014-12-10)This paper analyzes the generation and composition of municipal solid waste in Spanish towns and cities with more than 5000 inhabitants, which altogether account for 87 % of the Spanish population. To do so, the total ... -
Fast Kernel Smoothing of Point Patterns on a Large Network using Two-dimensional Convolution
Wiley (2019-06)We propose a computationally efficient and statistically principled method for kernel smoothingof point pattern data on a linear network. The point locations, and the network itself, are convolvedwith a two-dimensional ... -
Fat handles and phase portraits of Non Singular Morse-Smale ows on S3 with unknotted saddle orbits.
Advanced Nonlinear Studies Inc. (2014-08)In this paper we build Non-singular Morse-Smale ows on S3 with unknotted and unlinked saddle orbits by identifying fat round handles along their boundaries. This way of building the ows enables to get their phase ... -
Features detection in spatial point processes via multivariate techniques
John Wiley & Sons, Ltd. (2010)We consider the problem of detecting features of general shape in spatial point processes in the presence of substantial clutter. Our goal is to remove clutter from images where one or several features are present and have ... -
Feebly compact paratopological groups and real-valued functions
Springer-Verlag (2012)We present several examples of feebly compact Hausdorff paratopological groups (i.e., groups with continuous multiplication) which provide answers to a number of questions posed in the literature. It turns out that a ... -
Figures of equilibrium in close binary systems
Kluwer Academic Publishers (1992-12)The equilibrium configurations of close binary systems are analyzed. The autogravitational, centrifugal and tidal potentials are expanded in Clairaut's coordinates. From the set of the total potential angular terms an ... -
Finding archetypal patterns for binary questionnaires
Institut d'Estadística de Catalunya (Idescat) (2020-01)Archetypal analysis is an exploratory tool that explains a set of observations as mixtures of pure (extreme) patterns. If the patterns are actual observations of the sample, we refer to them as archetypoids. For the first ... -
Finite codimensional isometries on spaces of vector-valued continuous functions
Elsevier (2015-01)Based on the vector-valued generalization of Holsztyński's theorem by M. Cambern, we provide a complete description of the linear isometries of C(X,E)C(X,E) into C(Y,F)C(Y,F) whose range has finite codimension. -
Finite families of plane valuations: value semigroup, graded algebra and Poincaré series
(2012)In this paper, the authors are interested in some applications of valuation theory to algebraic geometry and, particularly, to singularity theory. The aim of this paper is to provide a concise survey of some aspects of the ... -
Finite Groups with Four Conjugacy Class Sizes
Taylor & Francis (2012-10-01)We determine the structure of all finite groups with four class sizes when two of them are coprime numbers larger than 1. We prove that such groups are solvable and that the set of class sizes is exactly {1,m,n,mk}, where ... -
Finite groups with two p-regular conjugacy class lengths II
Australian Mathematical Publishing Association (2009)Let G be a finite group. We prove that if the set of p-regular conjugacy class sizes of G has exactly two elements, then G has Abelian p-complement or G=PQ×A, with P∈Sylp(G), Q∈Sylq(G) and A Abelian. -
Finite p-solvable groups with three p-regular conjugacy class sizes
Edinburgh Mathematical Society (2013)Let G be a finite p-solvable group. We describe the structure of the p-complements of G when the set of p-regular conjugacy classes has exactly three class sizes. For instance, when the set of p-regular class sizes of G ... -
First Dirichlet Eigenvalue and Exit Time Moment Spectra Comparisons
Springer (2023) -
First eigenvalue of the Laplacian of a geodesic ball and area-based symmetrization of its metric tensor
Element (2022)Given a Riemmanian manifold, we provide a new method to compute a sharp upper bound for the first eigenvalue of the Laplacian for the Dirichlet problem on a geodesic ball of radius less than the injectivity radius of the ... -
First- and Second-Order Characteristics of Spatio-Temporal Point Processes on Linear Networks
American Statistical Association (2019-12-23)We present several characteristics for spatio-temporal point patterns when the spatial locations are restricted to a linear network. A nonparametric kernel-based intensity estimator is proposed to highlight the concentration ... -
Fixed Point Method to Analyze Differences between Hipparcos and ICRF2
Hindawi Publishing Corporation (2014-10-14) -
Foliations with isolated singularities on Hirzebruch surfaces
De Gruyter (2021)We study foliations ℱ on Hirzebruch surfaces Sδ and prove that, similarly to those on the projective plane, any ℱ can be represented by a bi-homogeneous polynomial affine 1-form. In case ℱ has isolated singularities, we ... -
Forecasting basketball players’ performance using sparse functional data
Wiley (2019-09)Statistics and analytic methods are becoming increasingly important in basketball. In particular, predicting players’ performance using past observations is a considerable challenge. The purpose of this study is to ... -
Fourier-splitting methods for the dynamics of rotating Bose-Einstein condensates
Elsevier (2018-01)We present a new method to propagate rotating Bose–Einstein condensates subject to explicitly time-dependent trapping potentials. Using algebraic techniques, we combine Magnus expansions and splitting methods to yield any ... -
Fractional ideals and integration with respect to the generalised Euler characteristic
Springer (2015)Let bb be a fractional ideal of a one-dimensional Cohen–Macaulay local ring containing a perfect field. This paper is devoted to the study of the motivic Poincaré series defined by different filtrations associated with bb ...