Regularity Of Solutions
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. EquaÃÃes diferenciais elÃpticas nÃo-variacionais, singulares/degeneradas : uma abordagem geomÃtrica / Nonvariational elliptic differential equations, singular/degenerate: a geometric approach
Neste presente trabalho, faremos o estudo de importantes propriedades geomÃtricas e analÃticas de soluÃÃes de equaÃÃes diferenciais parciais elÃpticas totalmente nÃo-lineares do tipo: singulares e degeneradas. O estudo de processos de combustÃo que se degeneram ao longo do conjunto de anulamento da densidade de um gÃs, um caso particular de problem
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/12/2012
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2. Indicadores de erros a posteriori na aproximação de funcionais de soluções de problemas elípticos no contexto do método Galerkin descontínuo hp-adaptivo / A posteriori error indicators in the approximation of functionals of elliptic problems solutions in the context of hp-adaptive discontinuous Galerkin method
In this work we study goal-oriented a posteriori error indicators for approximations by the discontinuous Galerkin method for the biharmonic and Poisson equations. The methodology used for the indicators is based on the dual problem associated with the functional, which is known to generate the most effective indicators. The two main error indicators based o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/09/2011
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3. Soluções para uma Classe de Equações de Schrödinger Quase Lineares via Método de Nehari
In this dissertation, we study existence of both one-sign and nodal positive solutions (with exactly two nodal domains) for a class of quasilinear Schrödinger equations, which model physic phenomena, for example, in plasma physics. To obtain the results, it was used, mainly, the Nehari method, as well as, regularity theory of elliptic and Concentration-Comp
Publicado em: 2010
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4. Extensões da estatística scan espacial utilizando técnicas de otimização multi-objetivo
This work presents three new extensions of Kulldorffs Spatial Scan Statistic for the detection and inference of spatial clusters. Consider a map divided into m regions with known populations at risk and number of cases of some disease. We would like to know if the cases are randomly distributed over the m regions or not; if the cases are not randomly distrib
Publicado em: 2009
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5. SoluÃÃes auto - similares e comportamento assintÃtico para as equaÃÃes de navier - Stokes
This master dissertation deals with the Navier-Stokes s equations on Rm, assuming that the fluid is incompressible and homogeneous. We analyzed the Cauchy s problem in Marcinkiewicz spaces (L p−weak), with the right index to allow the existence of selfsimilar solutions. We also study the asymptotic behavior of the solutions and show the existence of a
Publicado em: 2008
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6. Um problema parabólico com condição de fronteira nãolinear e peso indefinido : existência, regularidade, bifurcação e estabilidade de equilíbrios
This work is concerned with a parabolic problem, occuring in population genetics, under a nonlinear Neumann boundary condition with a weight of indefinite sign and a positive parameter. Considering a phase space appropriate to the physical nature intrinsic to the model, it is proved that the parabolic problem generates a nonlinear dynamical system, which is
Publicado em: 2008
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7. Multiagent patrolling / Patrulhamento multiagente
Patrolling refers to the act of walking around an area, with some regularity, in order to protect or supervise it. A group of agents is usually required to perform this task efficiently. Previous works in this field, using a metric that minimizes the period between visits to the same position, proposed static solutions that repeats a cycle over and over. But
Publicado em: 2008
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8. Minimal sufaces foliated by circunferences / Superficies minimas folheadas por circunferencias
Minimal surfaces are known to be the ones with mean curvature zero. Classical exampIes are the catenoid, helicoid and the Scherk surface. Historically, they were associated with the property of minimizing area. However, they can even maximize it localIy for cases of normal variation which include the boundary. For fixed boundary, we shalI analyse when they r
Publicado em: 2005
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9. Desenvolvimento de Eurytrema coelomaticum (Giard & Billet) (Digenea, Dicrocoeliidae) em Bradybaena similaris (Férussac) (Gastropoda, Xanthonychidae)
To follow the larval developmenl of Eurytrema coelomaticum (Giard & Billet, 1892) in Bradybaena similaris (Férussac, 1821) snails were separated in three classes using the shell diameter: Class A (14.5-10.2 mm), Class B (10.1-6.9 mm) and Class C (6.8-2.6 mm). Only snails belonging to classes A and B acquired the infection. Specimens of E. coelomaticum remov
Revista Brasileira de Zoologia. Publicado em: 2001-06
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10. Regularity of the Dirichlet problem for the complex Monge-Ampère equation
Regularity up to the boundary of the solutions of a boundary value problem for a complex Monge-Ampère equation on perturbations of an annulus in Cn is proven. The result can be applied to the classification of such domains.
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11. REGULARITY THEOREMS FOR SOLUTIONS OF PARTIAL DIFFERENTIAL EQUATIONS WITH VARIABLE COEFFICIENTS
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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.