Theory Of Numbers
Mostrando 25-36 de 144 artigos, teses e dissertações.
-
25. Numerical investigation of the three-dimensional secondary instabilities in the time-developing compressible mixing layer
Mixing layers are present in very different types of physical situations such as atmospheric flows, aerodynamics and combustion. It is, therefore, a well researched subject, but there are aspects that require further studies. Here the instability of two-and three-dimensional perturbations in the compressible mixing layer was investigated by numerical simulat
Journal of the Brazilian Society of Mechanical Sciences and Engineering. Publicado em: 2009-06
-
26. Topics of numbers theory and primality test / Topicos de teoria dos numeros e teste de primalidade
In this work were discussed topics of the theory of numbers and some primality tests. We show properties of whole numbers, and some criteria for divisibility. We also present, beyond the properties of the Common Dividing Maximum and Minimum Common Multiple, geometric interpretations of the same ones. They had been study topics of theory of congruences and fi
Publicado em: 2009
-
27. Numeros de entropia de conjuntos de funções suaves sobre a esfera S POT. d / Entropy numbers of sets of smooth functions on the sphere S POT. d
The entropy theory was introduced by Kolmogorov around 1930. Since then, many works aims to find estimates for entropy numbers of certain classes of sets. The main objective of this work is to study two theorems that establishes upper and lower estimates for entropy numbers of generic multiplier operators. To prove these theorems, we utilize some results on
Publicado em: 2009
-
28. The density of lattice sphere packings / A densidade de empacotamentos esfericos em reticulados
This dissertation addresses the lattice theory with focus on packing density, which has many applications and allows to establish interesting connections between topics of linear algebra, calculus of several variables and discrete geometry. The first chapter is an introduction to the main concepts and properties of lattices. In the second chapter we discuss
Publicado em: 2009
-
29. Teoria algébrica de números e o grupo de Galois / The Galois group of de x POT.n- x POT. n-1 - ...x-1
Nessa dissertação provamos que se n é um inteiro par ou primo, então o Grupo de Galois de x POT.n- x POT.n - 1"...- x - 1 é o grupo simétrico S IND.n. Essa família de polinômios surge naturalmente de uma generalização da sequência de Fibonacci
Publicado em: 2009
-
30. Construção dos critérios de divisibilidade com alunos de 5 série do ensino fundamental por meio de situações de aprendizagem
An analysis was carried out for this research to get to know how 5th graders mobilize their knowledge about the subject: divisibility and natural numbers, in which the aim is to build a new concept, the Divisibility Criteria for the numbers two, three and five. It is expected that this knowledge serves them as a way to comprehend the division bearing in mind
Publicado em: 2009
-
31. Interger fatorization and groups on conics / Fatoração de inteiros e grupos sobre conicas
The objective of this paper is to factorize integer number using rational points on the unitary circle. Also, it intends to determinate some groups on the conics. The research begins with the basic concepts of Algebra and Number Theory ensuring that the rational points set on the unitary circle has a structure of group. From this set is possible to extend th
Publicado em: 2009
-
32. Propagação de ondas de combustão em gases de Noble Abel e de van der Waals / Propagation of combustion waves in Noble-Abel and van der Waals gases
The classical Chapman-Jouguet (CJ) theory considers the propagation of combustion waves disregarding the effects of chemical kinetics and wave structure. The CJ model assumes one-dimensional steady flow, ideal gas and sonic conditions at the products. Since extremely high temperatures and pressures can be attained during the combustion wave propagation, real
Publicado em: 2009
-
33. Propagation of combustion waves in Noble-Abel and van der Waals gases / Propagação de ondas de combustão em gases de Noble Abel e de van der Waals
The classical Chapman-Jouguet (CJ) theory considers the propagation of combustion waves disregarding the effects of chemical kinetics and wave structure. The CJ model assumes one-dimensional steady flow, ideal gas and sonic conditions at the products. Since extremely high temperatures and pressures can be attained during the combustion wave propagation, real
Publicado em: 2009
-
34. O projeto São Paulo faz escola para o 1 ano do ensino médio sob o olhar da teoria elementar dos números
Neste trabalho apresento uma pesquisa qualitativa orientada pelo objetivo de investigar quais e como assuntos relativos à Teoria Elementar dos Números são abordados no material endereçado aos professores do 1 ano do Ensino Médio de 2008 da rede estadual paulista. Para tal intento, realizei uma análise de conteúdo, segundo descrito por Bardin (2009), u
Publicado em: 2009
-
35. Locatives and PPs in 15th century portuguese language: a movement research / Locativos e sintagmas preposicionados no português quatrocentista: um estudo do movimento
This research analyses the movement of prepositioned phrases (PPs), locative pronouns (Locs) and prepositioned locative pronouns (LocPs) in embedding structures of the 15th century Portuguese language, admitting that this period has variations which point to a grammar competition in Krochs (1989, 1994, 2003) framework. According to Martins (1994), Muidine (2
Publicado em: 2009
-
36. Stiffness Study of Closed Kinematics Chains / Estudo de rigidez de cadeias cinemáticas fechadas
Multibody systems consist on a kinematic chain composed of links that can be rigid or flexible, interconnected by joints. The multibody systems are of great importance and are used in various applications such as in aerospace and automobile engineering, machine tools, mechanisms, sea exploration, medicine and robotics. An example of multibody system that has
Publicado em: 2009