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The challenges of mathematics education for Indigenous teacher training
(Intercultural Education, 2015-12-15)
In this article, I outline research carried out on in an Ethnomathematics course designed to train Indigenous teachers in Costa Rica, in which the following ethnic groups participated: Ngabes, Bribris, and Cabecares. The ...
A priori and a posteriori error analyses of a pseudostress-based mixed formulation for linear elasticity
(Computers and Mathematics with Applications vol.71 no.2 585-614 2016, 2016-01-02)
In this paper we present the a priori and a posteriori error analyses of a non-standard mixed finite element method for the linear elasticity problem with non-homogeneous Dirichlet boundary conditions. More precisely, the ...
Abelian covers of alternating groups
(Archiv der Mathematik 107 135-150, 2016-07-07)
Let G = A n , a finite alternating group. We study the commuting graph of G and establish, for all possible values of n barring 13, 14, 17, and 19 whether or not the independence number is equal to the clique-covering number.
Las actitudes hacia la matemática, el desarrollo social, el nivel educativo de la madre y la autoeficacia como factores asociados al rendimiento académico en matemática
(Universidad Nacional (Costa Rica), 2020-01)
El documento trata sobre la problemática del bajo rendimiento académico en matemática (RAM) y, como objetivo principal, analiza de qué manera se relaciona este con las actitudes hacia la materia, la autoeficacia percibida, ...
Factores que influyen en la deserción y reprobación de estudiantes de un curso universitario de matemáticas
(Universidad Nacional (Costa Rica), 2020-01-31)
En este artículo, se reportan datos sobre la identificación de algunos factores que influyen en la deserción y reprobación de estudiantes de un curso de matemáticas en el nivel universitario. La investigación realizada ...
Aprovechamiento de las tecnologías de la información y comunicación por la comunidad académica en una universidad pública de Costa Rica
(Facultad de Historia, Geografía y Letras de la Universidad Metropolitana de Ciencias de la Educación (UMCE), 2021-06-07)
El objetivo de este estudio es analizar el aprovechamiento de las Tecnologías de Información y Comunicación (TIC) por parte del personal académico de una universidad pública de Costa Rica. En este proyecto se realizó un ...
A mixed virtual element method for the Brinkman problem
(Mathematical Models and Methods in Applied Sciences vol.27 no.4 707-743 2017, 2017)
In this paper, we introduce and analyze a mixed virtual element method (mixed-VEM) for the two-dimensional Brinkman model of porous media flow with non-homogeneous Dirichlet boundary conditions. More precisely, we employ ...
Analysis of the HDG method for the stokes–darcy coupling
(Numerical Methods for Partial Differential Equations, 2017-02-03)
In this article, we introduce and analyze a hybridizable discontinuous Galerkin (HDG) method for numerically solving the coupling of fluid flow with porous media flow. Flows are governed by the Stokes and Darcy equations, ...
Description and implementation of an algebraic multigrid preconditioner for H1-conforming finite element schemes
(Universidad Nacional, Costa Rica, 2020-07-31)
This paper presents detailed aspects regarding the implementation of the Finite Element Method (FEM) to solve a Poisson’s equation with homogeneous boundary conditions. The aim of this paper is ...
Hydrostatic limit for the symmetric exclusion process with lonh jumps: supper-diffusive case
(Universidad de Costa Rica, 2020-12-17)
Hydrostatic behavior for the one dimensional exclusion process withlong jumps in contact with infinite reservoirs at different densities are de-rived. The jump rate is described by a transition probabilitypwhich isproportional ...