Theorems In Action
Mostrando 1-11 de 11 artigos, teses e dissertações.
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1. Invariantes Operatórios de Equilíbrio Algébrico Presentes nas Estratégias de Estudantes do 3° Ano do Ensino Fundamental
Resumo Em vários países, têm sido recorrentes relatos de dificuldades de entendimento de conceitos algébricos. A solução para este problema, proposta por grande parte da comunidade de educadores matemáticos pelo mundo, foi promover a introdução de conceitos algébricos desde os primeiros anos escolares. O objetivo deste trabalho foi descrever e anal
Bolema. Publicado em: 02/12/2019
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2. Obstáculos à aprendizagem de conceitos algébricos no ensino fundamental: uma tentativa de aproximação entre os obstáculos epistemológicos e a teoria dos campos conceituais / Learning obstacles involved in the learning of algebraic concepts in elementary school: an attempt approach between epistemological obstacles and theory of conceptual fields.
The aim of this study is to examine obstacles and understand difficulties involved in the learning of Algebra in elementary school. The work consists in a review of the academic production and theoretical studies concerning the construction of the idea of obstacles, difficulties and errors in the learning of Mathematics in Brazil and overseas. The analyses o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/08/2012
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3. Teoria de Galois para ação de grupóides
This research aims to address theories of Galois for the case of groupoids action over rings, focusing especially on building and analyzing correspondence s theorems, taking as its starting point the theory developed by Chase, Harrison and Rosenberg in [8].
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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4. CÁLCULO DE ÁREA NA VIDA E NA ESCOLA: possíveis diferenças conceituais / CALCULATION OF AREA IN LIFE AND IN SCHOOL: possible conceptual differences
Este estudo centra-se na discussão sobre os conhecimentos matemáticos envolvidos na prática dos trabalhadores rurais, as possíveis relações existentes entre os conceitos matemáticos dos agricultores, a vivência sóciocultural dos alunos e a prática pedagógica dos professores das Escolas Municipais rurais na região de Irecê/BA, no que diz respeito
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/04/2010
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5. CÁLCULO DE ÁREA NA VIDA E NA ESCOLA: possíveis diferenças conceituais / CALCULATION OF AREA IN LIFE AND IN SCHOOL: possible conceptual differences
This study focuses on the discussion regarding mathematical knowledge involved in the work of rural farmers, the possible relations existing within the farmers‟ mathematical concepts, the social-cultural experience of students and the pedagogical practice of teachers of the rural Municipal Schools in the region of Irecê, BA, with respect to area calcu
Publicado em: 2010
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6. Subvariedades isoparamétricas do espaço Euclidiano / Isoparametric submanifolds of Euclidian space
The goal of this dissertation is to present an introduction to the study of isoparametric submanifolds of Euclidean space. We begin with an introduction to the history of the subject. Then we present the basic results of submanifold theory of space forms. We compute the fundamental equations of first and second order, and we prove the fundamental theorem of
Publicado em: 2008
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7. Construção dos conceitos geométricos num contexto de formação inicial de professores dos anos iniciais do ensino fundamental
Several scientific papers denounce the abandonment of the teaching of geometry in the elementary school and one of the reasons given is the unpreparedness of the teacher. This paper analyzes, in the context of initial training, the acquisition of skills in geometry, through the analysis of the participation and written production of students from the course
Publicado em: 2008
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8. Construções geométricas: uma alternativa para desenvolver conhecimentos acerca da demonstração em uma formação continuada
The purpose of this study is to analyze a sequence of activities carried out with in service teachers, aiming the construction of the definition of line bisector of a segment and, from this definition, to allow them to demonstrate inherent properties of this mathematical object. Moreover, the study also aimed that the teachers were able to justify it mathema
Publicado em: 2008
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9. Estimativas ótimas para certos teoremas generalizados de Borsuk-Ulam e Ljusternik-Schnirelmann.
The classic Theorems of Borsuk-Ulam and Ljusternik-Schnirelmann have many generalizations, among which we point out that given by C. Schupp [12] and H. Steinlein [14]. Schupp generalizes the Borsuk-Ulam Theorem by replacing the Z2-free action on the n-sphere by a Zp-free action, where p is any prime number. In the generalization of the Ljusternik-Schnirelman
Publicado em: 2005
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10. Signature quantization
We associate to the action of a compact Lie group G on a line bundle over a compact oriented even-dimensional manifold a virtual representation of G using a twisted version of the signature operator. We obtain analogues of various theorems in the more standard theory of geometric quantization.
National Academy of Sciences.
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11. Kostant polynomials and the cohomology ring for G/B
The Schubert calculus for G/B can be completely determined by a certain matrix related to the Kostant polynomials introduced in section 5 of Bernstein, Gelfand, and Gelfand [Bernstein, I., Gelfand, I. & Gelfand, S. (1973) Russ. Math. Surv. 28, 1–26]. The polynomials are defined by vanishing properties on the orbit of a regular point under the action o
The National Academy of Sciences of the USA.