Browsing EAMOArtigos by Title
Now showing items 1938 of 230

Bandwidth selection for kernel density estimation with lengthbiased data
(Taylor & Francis, 2017)Lengthbiased data are a particular case of weighted data, which arise in many situations: biomedicine, quality control or epidemiology among others. In this paper we study the theoretical properties of kernel density ... 
Basic control theory for linear fractional differential equations with constant coefficients
(Frontiers Media, 2020)In this paper we present an analogous result of the famous Kalman controllability criterion for first order linear ordinary differential equations with constant coefficients that applies to the case of linear differential ... 
Basic properties of Sobolev's spaces on time scales
(SpringerOpen, 2006)We study the theory of Sobolev's spaces of functions defined on a closed subinterval of an arbitrary time scale endowed with the Lebesgue Δmeasure; analogous properties to that valid for Sobolev's spaces of functions ... 
Benestar socioeconómico dos concellos galegos: unha aproximación á súa medida
(Universidade de Santiago de Compostela, 2003)O obxectivo final deste traballo é chegar a unha comparación territorial entre os concellos galegos no referente ó nivel ou calidade de vida ou, cando menos, á súa aproximación. Para este propósito empregarase o método ... 
Bootstrapping kernel intensity estimation for inhomogeneous point processes with spatial covariates
(Elsevier, 2019)The biasvariance tradeo for inhomogeneous point processes with covariates is theoretically and empirically addressed. A consistent kernel estimator for the rstorder intensity function based on covariates is constructed, ... 
Boundary value problems for a class of sequential integrodifferential equations of fractional order
(Hindawi, 2013)We investigate the existence of solutions for a sequential integrodifferential equation of fractional order with some boundary conditions. The existence results are established by means of some standard tools of fixed point ... 
Burned area prediction with semiparametric models
(Csiro Publishing, 2015)Wildfires are one of the main causes of forest destruction, especially in Galicia (northwest Spain), where the area burned by forest fires in spring and summer is quite high. This work uses two semiparametric timeseries ... 
Can environmental constraints determine random patterns of plant species cooccurrence?
(John Wiley & Sons Ltd., 20150213)Plant community ecologists use the null model approach to infer assembly processes from observed patterns of species cooccurrence. In about a third of published studies, the null hypothesis of random assembly cannot be ... 
Central limit theorems for directional and linear random variables with applications
(Academia Sinica, Institute of Statistical Science, 2015)A central limit theorem for the integrated squared error of the directionallinear kernel density estimator is established. The result enables the construction and analysis of two testing procedures based on squared loss: ... 
Characterization of constant sign Green's function for a twopoint boundaryvalue problem by means of spectral theory
(Texas State University, Department of Mathematics, 2017)This article is devoted to the study of the parameter’s set where the Green’s function related to a general linear nthorder operator, depending on a real parameter, Tn[M], coupled with many different two point boundary value ... 
Chronicle of an early demise, surname extinction in the fifteenth and the seventeenth centuries
(Taylor & Francis, 2018)It has been amply demonstrated that individuals' reproductive capability is the key explanatory phenomenon for understanding onomastic disappearance during the early modern period. This article analyzes the evolution and ... 
Ciclo de vida organizacional. Unha revisión teórica
(Universidade de Santiago de Compostela. Servizo de Publicacións e Intercambio Científico, 1996) 
A circular nonhomogeneous hidden Markov field for the spatial segmentation of wildfire occurrences
(Wiley, 2019)Motivated by studies of wildfire seasonality, we propose a nonhomogeneous hidden Markov random field to model the spatial distribution of georeferenced fire occurrences during the year, by representing occurrence times as ... 
A Clustering Perspective of the Collatz Conjecture
(MDPI, 2021)This manuscript focuses on one of the most famous open problems in mathematics, namely the Collatz conjecture. The first part of the paper is devoted to describe the problem, providing a historical introduction to it, as ... 
Compression–Expansion Fixed Point Theorems for Decomposable Maps and Applications to Discontinuous ϕLaplacian problems
(Springer, 2021)In this paper, we prove new compression–expansion type fixed point theorems in cones for the socalled decomposable maps, that is, compositions of two upper semicontinuous multivalued maps. As an application, we obtain ... 
Computation of Green’s functions through algebraic decomposition of operators
(Springer International Publishing, 20160913)In this article, we use linear algebra to improve the computational time for obtaining Green’s functions of linear differential equations with reflection (DER). This is achieved by decomposing both the ‘reduced’ equation ... 
Constant sign solution for a simply supported beam equation
(University of Szeged, 2017)The aim of this paper is to ensure the existence of constant sign solutions for the fourth order boundary value problem. This problem models the behavior of a suspension bridge assuming that the vertical displacement ... 
Constant Sign Solutions to Linear Fractional Integral Problems and Their Applications to the Monotone Method
(MDPI, 2020)This manuscript provides some results concerning the sign of solutions for linear fractional integral equations with constant coefficients. This information is later used to prove the existence of solutions to some ... 
Controllability of nonlinear fractional delay dynamical systems with prescribed controls
(Vilnius University Press, 2018)In this paper, we consider controllability of nonlinear fractional delay dynamical systems with prescribed controls. We firstly give the solution representation of the fractional delay dynamical systems using Laplace ... 
A cota de erro na medida das audiencias
(Academia Galega do Audiovisual, 2008)