Moduli Theory
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Orthotropic Elastic Properties Assessment of Sandwich Laminates
ABSTRACT: Sandwich structures are nowadays widely used due its excellent characteristics of matching light weight with high bend stiffness. However the complex nature of its composition turns the estimation of its mechanical elastic properties challenging. The objective of the present article is to propose an analytical/experimental model to estimate the ort
J. Aerosp. Technol. Manag.. Publicado em: 26/06/2017
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2. A Model for Homogenization of Linear Viscoelastic Periodic Composite Materials with Imperfect Interface
Abstract In this paper, a micromechanical extension of the finite-volume direct averaging micromechanics theory (FVDAM) is presented for evaluation of the homogenized relaxation moduli of linear viscoelastic unidirectional fiber reinforced composites with periodic microstructures. Such materials are assumed as composed of repeating unit cell with arbitrary i
Lat. Am. j. solids struct.. Publicado em: 2016
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3. Elementos da teoria de Teichmüller / Elements of the Teichmüller theory
Nesta dissertação estudamos as algumas ferramentas básicas relacionadas aos espaços de Teichmüller. Introduzimos o espaço de Teichmüller de gênero g >ou = 1, denotado por \ T IND. g\ . O objetivo principal é construir as coordenadas de Fenchel-Nielsen \ OMEGA IND. g\ : \ T IND. g\ \ SETA\ !\ R POT. 3g- 3\ IND +\ x \ R POT. 3g - 3\ para cada grafo c�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2012
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4. Born-Infeld corrections to the entropy function of heterotic black holes
We use the black hole entropy function to study the effect of Born-Infeld terms on the entropy of extremal black holes in heterotic string theory in four dimensions. We find that after adding a set of higher curvature terms to the effective action, attractor mechanism works and Born-Infeld terms contribute to the stretching of near horizon geometry. In the a
Brazilian Journal of Physics. Publicado em: 2007-06
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5. Geometric invariant theory and representations of quivers / Teoria geometrica dos invariantes e representações de quivers
This thesis is divided into two parts. ln the first part we present the main ideas and tools of Geometric lnvariant Theory, which is concerned with the following problem: ls it possible to give an algebraic structure to the quotient of an algebraic variety by the action of an algebraic group? Qne of the most important results says that an algebraic quotient
Publicado em: 2006
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6. Espaço de configurações e OCHA / Configuration sapces and OCHA
Esta tese consiste do estudo das OCHAs (Open-Closed Homotopy Algebras) sob os pontos de vista algébrico e geométrico. São demonstrados essencialmente dois resultados novos. O primeiro refere-se à definição de OCHA através de coderivações. Mais especificamente, provamos que qualquer coderivação D E Coderl (sc Hc 0 TC Ho) de grau 1 satisfazendo D2 =
Publicado em: 2006
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7. On the use, by Einstein, of the principle of dimensional homogeneity, in three problems of the physics of solids
Einstein, in 1911, published an article on the application of the principle of dimensional homogeneity to three problems of the physics of solids: the characteristic frequency of the atomic nets of crystalline solids as a function of their moduli of compressibility or of their melting points, and the thermal conductivity of crystalline insulators. Recognizin
Anais da Academia Brasileira de Ciências. Publicado em: 2000-12
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8. Interaction between inclusions embedded in membranes.
We calculate the membrane-induced interaction between inclusions, in terms of the membrane stretching and bending moduli and the spontaneous curvature. We find that the membrane-induced interaction between inclusions varies nonmonotonically as a function of the inclusion spacing. The location of the energy minimum depends on the spontaneous curvature and the
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9. Stability of local rings of dimension 2
The notion of stability of a local ring arises naturally in investigating completed moduli spaces via geometric invariant theory. A scheme corresponding to a boundary point of a moduli space of nonsingular varieties cannot have unstable singular points. This paper reports some results concerning the stability of surface singularities. If a two-dimensional Co
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10. Elliptic Yang–Mills equation
We discuss some recent progress on the regularity theory of the elliptic Yang–Mills equation. We start with some basic properties of the elliptic Yang–Mills equation, such as Coulomb gauges, monotonicity, and curvature estimates. Next we discuss singularity of stationary Yang–Mills connections and compactness theorems on Yang–Mills connections with b
National Academy of Sciences.
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11. Holomorphic Embedding of Complex Curves in Spaces of Constant Holomorphic Curvature
A special case of Wirtinger's theorem asserts that a complex curve (two-dimensional) holomorphically embedded in a Kaehler manifold is a minimal surface. The converse is not necessarily true. Guided by considerations from the theory of moduli of Riemann surfaces, we discover (among other results) sufficient topological and differential-geometric conditions f
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12. On a generalization of a theorem of Erich Hecke
E. Hecke initiated the application of representation theory to the study of cusp forms. He showed that, for p a prime congruent to 3 mod 4, the difference of multiplicities of certain conjugate representations of SL(Fp) on cusp forms of degree 1, level p, and weight ≥2 is given by the class number h(-p) of the field Q(√-p). We apply the holomorphic Lefsc