Algebra Matrix
Mostrando 1-12 de 35 artigos, teses e dissertações.
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1. Digital Soil Mapping Using Machine Learning Algorithms in a Tropical Mountainous Area
ABSTRACT: Increasingly, applications of machine learning techniques for digital soil mapping (DSM) are being used for different soil mapping purposes. Considering the variety of models available, it is important to know their performance in relation to soil data and environmental variables involved in soil mapping. This paper investigated the performance of
Rev. Bras. Ciênc. Solo. Publicado em: 14/11/2018
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2. Conocimiento Especializado de un Profesor de Álgebra Lineal y Espacios de Trabajo Matemático
Abstract In this study, we approach the possible relationships between the analysis results of a classroom session with two different theoretical models: the Mathematics Teacher's Specialized Knowledge (MTSK), and the Mathematical Working Spaces (MWS). We also discuss the specialized knowledge that an university teacher of Linear Algebra deploys in a session
Bolema. Publicado em: 2016-04
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3. Identidades polinomiais em álgebras matriciais sobre a álgebra de Grassmann / Polynomial identities in matrix algebras over the Grassmann algebra
Nesta tese estudamos a álgebra genérica de M1;1 em dois geradores sobre um corpo infinito de característica diferente de 2. Descrevemos o centro desta álgebra e provamos que este é a soma direta do corpo com um ideal nilpotente da álgebra. Como consequência mostramos que este centro contém elementos não escalares, respondendo a uma pergunta feita po
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/03/2012
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4. A new block algorithm for full-rank solution of the Sylvester-observer equation
A new block algorithm for computing a full rank solution of the Sylvester-observer equation arising in state estimation is proposed. The major computational kernels of this algorithm are: 1) solutions of standard Sylvester equations, in each case of which one of the matrices is of much smaller order than that of the system matrix and (furthermore, this small
Publicado em: 2011
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5. Funções de interpolação e técnicas de solução para problemas de poisson usando método de elementos finitos de alta ordem / Interpolation functions and techniques for solving poisson problems using high order finite element method
Esse trabalho apresenta uma nova técnica de solução para o problema de Poisson, via problemas de projeção local, baseada na equivalência dos coeficientes para os problemas de Poisson e projeção. Um método de construção de matrizes de massa e rigidez, para triângulos, através do produto de matrizes unidimensionais de massa, mista e rigidez, usand
Publicado em: 2011
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6. A simple demonstration of the existence of the jordan canonical form for any square matrix
All the demonstrations known to this author of the existence of the Jordan Canonical Form are somewhat complex - usually invoking the use of new spaces, and what not. These demonstrations are usually too difficult for an average Mathematics student to understand how he or she can obtain the Jordan Canonical Form for any square matrix. The method here propose
Publicado em: 01/07/2010
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7. An application of the geometric algebra to the classical mechanic : the Kustaanheimo-Stiefel transformation / Uma aplicação da algebra geometrica a mecanica classica : a transformação de Kustaanheimo-Stiefel
In this dissertation we presented the Geometric Algebra of Euclidean Space and studied some of its properties. To exemplify its applications, we studied the Kustaanheimo-Stiefel Transformation in terms of Geometric Algebra. This purpose we presented initially the KS Transformation which regularizes the Kepler motion in three dimensions by removing a singular
Publicado em: 2010
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8. Identidades polinomiais graduadas de algumas àlgebras matriciais
Let K be an associative and commutative ring with 1 and let A be an associative Kalgebra with or without 1. We say that the polynomial identities of A have the Specht property if each K-algebra B satisfying all the polynomial identities of A has a finite basis for its identities. Let M2(K) be the algebra of 2 × 2 matrices over a field K. If K is a field of
Publicado em: 2010
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9. A-polynomial identities in associative algebras / A-identidades polinomiais em algebras associativas
In this PhD thesis we study polynomial identities in associative algebras. More precisely we study the A-ideIltities for several important classes of algebras. The first main result of the thesis gives a complete description of the A-identities for the Grassmann algebra over an algebraically closed field of characteristic O. In this way we give a positive an
Publicado em: 2009
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10. The Matrix Product Ansatz for integrable U(1)N models in Lunin-Maldacena backgrounds
We obtain through a Matrix Product Ansatz (MPA) the exact solution of the most general N-state spin chain with U(1)N symmetry and nearest neighbour interaction. In the case N = 6 this model contain as a special case the integrable SO(6) spin chain related to the one loop mixing matrix for anomalous dimensions in N = 4 SYM, dual to type IIB string theory in t
Brazilian Journal of Physics. Publicado em: 2008-06
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11. Como sobrevivem as diferentes noções de álgebra linear nos cursos de engenharia elétrica e nas instituições
This research included in the current project called In Search of propitious situations for learning basic concepts of Linear Algebra of Group s Studies of Education Algebraic (GPEA) of the Pontifical Catholic University of São Paulo (PUC-SP), proposes find elements that meet issues inherent in this research: Why and how should be tauch the discipline Linea
Publicado em: 2008
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12. Granded algebras and graded polynomial identities / Algebras graduadas e identidades polinomiais graduadas
In this work we study graded algebras and graded polynomial identities. We study two types of problems: finding the possible gradings on a given algebra, and finding a basis forthe graded identities of a given algebra. We begin with the basic definitions and results onalgebras, graded algebras, (graded) polynomial identities, etc. We give a description of th
Publicado em: 2007