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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.
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, ...
Una implementación computacional del método Vem Mixto para el problema de Brinkman en 2D
(Universidad de Costa Rica, 2019)
En este artículo se describen algunos aspectos específicos sobre una implementación computacional para la formulación mixta de elementos virtuales (mixed-VEM, por sus siglas en inglés) del problema lineal de Brinkman en ...
Knowledge Evidenced by Prospective Mathematics Teachers when Performing a Task Involving Geometry, Teaching and the Use of Technology
(Lutheran University of Brazil, 2019)
The types of knowledge that prospective mathematics teachers use when faced with tasks
involving technology are interesting because this knowledge can be used as a basis for analyzing
the relevance of these types of ...
Teaching the Topic of Money in Mathematics Classes in Primary School
(Lutheran University of Brazil, 2019)
This study analyzes the teaching of the topic of money in mathematics by a fifth-grade
teacher. The research is naturalistic-descriptive and is based on a case study with non-participant
observation. Indicators of ...
A mixed virtual element method for a pseudostress-based formulation of linear elasticity
(Elsevier B.V., 2019)
In this paper we introduce and analyze a mixed virtual element method (mixed-VEM)
for a pseudostress-displacement formulation of the linear elasticity problem with non homogeneous Dirichlet boundary conditions. We follow ...
Expected and unexpected effects of sexism on women’s math performance
(Sociedad Interamericana de Psicología, 2019)
Research has shown that gender differences in math performance are partially predicted by sociocultural
aspects such as sexist ideologies and stereotypes. This study examined sexist ideologies as predictors of
women’s ...