Moduli Space
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Modeling the creep behavior of GRFP truss structures with Positional Finite Element Method
Abstract This paper presents the development of a formulation, based on Positional Finite Element Method, to describe the viscoelastic mechanical behavior of space trusses. The numerical method used was chosen due to its efficiency in the applications concerning nonlinear numerical analyses. The formulation describes the positional variation over time under
Lat. Am. j. solids struct.. Publicado em: 26/04/2018
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2. Al and PEG Effect on Structural and Physicochemical Properties of CoFe2O4
In this work, pure and Alumina doped cobalt ferrite nanoparticles CoFe2−xAlxO4 (for x = 0.44) have been synthesized by the sol gel method. The influence of alumina doping on the morphological and mechanical properties of CoFe2O4 nano-particles were investigated by means of X-ray powder diffraction (XRD) and rietveld analysis. XRD analysis confirmed that th
Mat. Res.. Publicado em: 06/03/2017
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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. Deterministic and stochastic methods for computing volumetric moduli of convex cones
This work concerns the practical computation of the volumetric modulus, also called normalized volume, of a convex cone in a Euclidean space of dimension beyond three. Deterministic and stochastic techniques are considered. Mathematical subject classification: Primary: 28A75; Secondary: 52A20.
Computational & Applied Mathematics. Publicado em: 2010-06
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5. Viscoelásticos oftálmicos: comparação entre os comerciais e formulações de galactomanana de Dimorphandra gardneriana
Ophthalmic viscosurgical devices (OVD) are materials injected in intraocular space during cataract removal to reduce trauma in the patient's eye. Three Brazilian commercially available OVDs (Medilon®, Metilcelulose® and Ofthyal®) were evaluated as well as formulations based on Dimorphandra gardneriana galactomannan. Viscosity and viscoelastic parameters,
Química Nova. Publicado em: 2010
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6. Sobre hipersuperfÃcies r-mÃnimas com fins planares no espaÃo euclidiano. / On hipersurface r-minims with ends to glide in the Euclidean space
Uma hipersuperficie sigma està contido Rn+1 à r-mÃnima se sua (r + 1)-curvatura (a (r + 1)-Ãsima funÃÃo simÃtrica elementar de suas curvaturas principais) à identicamente nula. Se n >2(r + 1)mostramos que a hipersuperfÃcie r-mÃnima rotacionalmente invariante en Rn+1, a saber, o n-catenÃide, descrito em [HL1], à nÃo-degenerado no sentido que nÃo
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 21/09/2007
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7. 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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8. GENUS THREE CURVES IN CHARACTERISTIC TWO / CURVAS DE GENÊRO TRÊS EM CARACTERÍSTICA DOIS
We study the variety M3 of curves of genus three in characteristic two. For each of the curves we compute the possible number of Weierstrass points, their weights, normalizations of many loci in the moduli space, and so on. We also deal with the concept of a Galois point.
Publicado em: 2003
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9. Moduli space of special Lagrangians in almost Kahler spaces
Neste trabalho, estendemos o teorema de McLean sobre o espaço modular de variedades lagrangianas especiais em variedades de Calabi-Yau (CY) para variedades quasi-complexas que estão próximas a uma dada variedade CY.
Anais da Academia Brasileira de Ciências. Publicado em: 2001-03
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10. 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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11. Compact isospectral sets of plane domains
Any isospectral family of two-dimensional Euclidean domains is shown to be compact in the C∞ topology. Previously Melrose, using heat invariants, was able to establish the C∞ compactness of the curvature of the boundary curves. The additional ingredient used in this paper to obtain the compactness of the domains is the behavior of the determinant of the
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12. 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.